diff --git a/engine/db/injects.go b/engine/db/injects.go
index 205e434..5749a36 100644
--- a/engine/db/injects.go
+++ b/engine/db/injects.go
@@ -41,6 +41,16 @@ func GetInjects() ([]InjectSchema, error) {
 	return injects, nil
 }
 
+// GetInjectByID retrieves a single inject by ID
+func GetInjectByID(id uint) (InjectSchema, error) {
+	var inject InjectSchema
+	result := db.Table("inject_schemas").First(&inject, id)
+	if result.Error != nil {
+		return InjectSchema{}, result.Error
+	}
+	return inject, nil
+}
+
 // UpdateInject
 func UpdateInject(inject InjectSchema) (InjectSchema, error) {
 	result := db.Table("inject_schemas").Save(&inject)
diff --git a/static/templates/pages/injects.html b/static/templates/pages/injects.html
index d949ecb..a63257d 100644
--- a/static/templates/pages/injects.html
+++ b/static/templates/pages/injects.html
@@ -350,6 +350,9 @@ <h5 class="modal-title" id="delete__form--label">Delete Inject</h5>
                             data-bs-target="#delete__form">
                             Delete
                         </button>
+                        <a id="download-all-submissions--placeholder" class="btn btn-outline-primary rounded-1 m-2" href="/api/injects/placeholder/submissions/download">
+                            Download All Submissions
+                        </a>
                     </div>
                     {{ end }}
                     <div class="h-100 p-4 overflow-auto">
diff --git a/tests/integration/submissions_test.go b/tests/integration/submissions_test.go
new file mode 100644
index 0000000..7ad1336
--- /dev/null
+++ b/tests/integration/submissions_test.go
@@ -0,0 +1,194 @@
+package integration
+
+import (
+	"archive/zip"
+	"bytes"
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"quotient/engine/db"
+	"quotient/tests/testutil"
+	"quotient/www/api"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestDownloadAllSubmissions(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test in short mode")
+	}
+
+	pgContainer := testutil.StartPostgres(t)
+	defer pgContainer.Close()
+	db.Connect(pgContainer.ConnectionString())
+
+	// Use temp dir for submission files
+	submissionsDir := t.TempDir()
+	originalWd, _ := os.Getwd()
+	os.Chdir(submissionsDir)
+	defer os.Chdir(originalWd)
+
+	// Setup: team, inject, submissions
+	team, err := db.CreateTeam(db.TeamSchema{
+		Name:       fmt.Sprintf("Team-%d", time.Now().UnixNano()),
+		Identifier: "01",
+		Active:     true,
+	})
+	require.NoError(t, err, "failed to create team")
+	t.Logf("Created team ID: %d", team.ID)
+
+	inject, err := db.CreateInject(db.InjectSchema{
+		Title:     fmt.Sprintf("Test Inject-%d", time.Now().UnixNano()),
+		OpenTime:  time.Now().Add(-1 * time.Hour),
+		DueTime:   time.Now().Add(1 * time.Hour),
+		CloseTime: time.Now().Add(2 * time.Hour),
+	})
+	require.NoError(t, err, "failed to create inject")
+	t.Logf("Created inject ID: %d", inject.ID)
+
+	// Create 2 submission versions
+	for v := 1; v <= 2; v++ {
+		dir := filepath.Join("submissions", fmt.Sprintf("%d/%d/%d", inject.ID, team.ID, v))
+		err := os.MkdirAll(dir, 0750)
+		require.NoError(t, err, "failed to create dir")
+
+		filename := fmt.Sprintf("report_v%d.pdf", v)
+		err = os.WriteFile(filepath.Join(dir, filename), []byte(fmt.Sprintf("content %d", v)), 0644)
+		require.NoError(t, err, "failed to write file")
+
+		sub, err := db.CreateSubmission(db.SubmissionSchema{
+			TeamID:             team.ID,
+			InjectID:           inject.ID,
+			SubmissionTime:     time.Now(),
+			SubmissionFileName: filename,
+		})
+		require.NoError(t, err, "failed to create submission")
+		t.Logf("Created submission version %d for team %d", sub.Version, team.ID)
+	}
+
+	// Verify submissions exist
+	subs, err := db.GetSubmissionsForInject(inject.ID)
+	require.NoError(t, err)
+	t.Logf("Found %d submissions for inject %d", len(subs), inject.ID)
+
+	// Make request
+	req := httptest.NewRequest("GET", fmt.Sprintf("/api/injects/%d/submissions/download", inject.ID), nil)
+	req.SetPathValue("id", fmt.Sprintf("%d", inject.ID))
+	rr := httptest.NewRecorder()
+
+	api.DownloadAllSubmissions(rr, req)
+
+	// Verify ZIP response
+	if rr.Code != http.StatusOK {
+		t.Logf("Response body: %s", rr.Body.String())
+	}
+	require.Equal(t, http.StatusOK, rr.Code)
+	assert.Equal(t, "application/zip", rr.Header().Get("Content-Type"))
+
+	zipReader, err := zip.NewReader(bytes.NewReader(rr.Body.Bytes()), int64(rr.Body.Len()))
+	require.NoError(t, err)
+	require.Len(t, zipReader.File, 2)
+
+	// Verify files are in ZIP with correct content
+	for _, f := range zipReader.File {
+		rc, _ := f.Open()
+		content, _ := io.ReadAll(rc)
+		rc.Close()
+		assert.Contains(t, string(content), "content")
+	}
+}
+
+func TestDownloadAllSubmissions_MultipleTeamsSameFilename(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test in short mode")
+	}
+
+	pgContainer := testutil.StartPostgres(t)
+	defer pgContainer.Close()
+	db.Connect(pgContainer.ConnectionString())
+
+	// Use temp dir for submission files
+	submissionsDir := t.TempDir()
+	originalWd, _ := os.Getwd()
+	os.Chdir(submissionsDir)
+	defer os.Chdir(originalWd)
+
+	// Create inject
+	inject, err := db.CreateInject(db.InjectSchema{
+		Title:     fmt.Sprintf("Multi-Team Inject-%d", time.Now().UnixNano()),
+		OpenTime:  time.Now().Add(-1 * time.Hour),
+		DueTime:   time.Now().Add(1 * time.Hour),
+		CloseTime: time.Now().Add(2 * time.Hour),
+	})
+	require.NoError(t, err)
+	t.Logf("Created inject ID: %d", inject.ID)
+
+	// Create 3 teams, each submitting a file with the same name
+	numTeams := 3
+	teams := make([]db.TeamSchema, numTeams)
+	for i := 0; i < numTeams; i++ {
+		team, err := db.CreateTeam(db.TeamSchema{
+			Name:       fmt.Sprintf("Team%d-%d", i+1, time.Now().UnixNano()),
+			Identifier: fmt.Sprintf("%02d", i+1),
+			Active:     true,
+		})
+		require.NoError(t, err)
+		teams[i] = team
+		t.Logf("Created team: %s (ID: %d)", team.Name, team.ID)
+
+		// Each team submits "report.pdf" with unique content
+		dir := filepath.Join("submissions", fmt.Sprintf("%d/%d/1", inject.ID, team.ID))
+		err = os.MkdirAll(dir, 0750)
+		require.NoError(t, err)
+
+		content := fmt.Sprintf("Report from team %d", team.ID)
+		err = os.WriteFile(filepath.Join(dir, "report.pdf"), []byte(content), 0644)
+		require.NoError(t, err)
+
+		_, err = db.CreateSubmission(db.SubmissionSchema{
+			TeamID:             team.ID,
+			InjectID:           inject.ID,
+			SubmissionTime:     time.Now(),
+			SubmissionFileName: "report.pdf",
+		})
+		require.NoError(t, err)
+	}
+
+	// Make request
+	req := httptest.NewRequest("GET", fmt.Sprintf("/api/injects/%d/submissions/download", inject.ID), nil)
+	req.SetPathValue("id", fmt.Sprintf("%d", inject.ID))
+	rr := httptest.NewRecorder()
+
+	api.DownloadAllSubmissions(rr, req)
+
+	// Verify response
+	if rr.Code != http.StatusOK {
+		t.Logf("Response body: %s", rr.Body.String())
+	}
+	require.Equal(t, http.StatusOK, rr.Code)
+	assert.Equal(t, "application/zip", rr.Header().Get("Content-Type"))
+
+	// Verify ZIP contains all 3 files (not overwritten)
+	zipReader, err := zip.NewReader(bytes.NewReader(rr.Body.Bytes()), int64(rr.Body.Len()))
+	require.NoError(t, err)
+	require.Len(t, zipReader.File, numTeams, "ZIP should contain one file per team")
+
+	// Verify each file has unique content from different teams
+	contents := make(map[string]bool)
+	for _, f := range zipReader.File {
+		t.Logf("ZIP entry: %s", f.Name)
+		rc, _ := f.Open()
+		content, _ := io.ReadAll(rc)
+		rc.Close()
+		contents[string(content)] = true
+	}
+
+	// All 3 team contents should be unique
+	assert.Len(t, contents, numTeams, "All team submissions should have unique content in ZIP")
+}
diff --git a/www/api/submissions.go b/www/api/submissions.go
index 9641f93..9f66356 100644
--- a/www/api/submissions.go
+++ b/www/api/submissions.go
@@ -1,11 +1,14 @@
 package api
 
 import (
+	"archive/zip"
 	"fmt"
 	"io"
+	"log/slog"
 	"math"
 	"net/http"
 	"os"
+	"path/filepath"
 	"quotient/engine/db"
 	"slices"
 	"strconv"
@@ -173,3 +176,65 @@ func DownloadSubmissionFile(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 }
+
+func DownloadAllSubmissions(w http.ResponseWriter, r *http.Request) {
+	temp, err := strconv.ParseUint(r.PathValue("id"), 10, 32)
+	if err != nil {
+		WriteJSON(w, http.StatusBadRequest, map[string]any{"error": "Invalid inject id"})
+		return
+	}
+	injectID := uint(temp)
+
+	if _, err := db.GetInjectByID(injectID); err != nil {
+		WriteJSON(w, http.StatusNotFound, map[string]any{"error": "Inject not found"})
+		return
+	}
+
+	submissions, err := db.GetSubmissionsForInject(injectID)
+	if err != nil {
+		WriteJSON(w, http.StatusInternalServerError, map[string]any{"error": "Error retrieving submissions"})
+		return
+	}
+
+	if len(submissions) == 0 {
+		WriteJSON(w, http.StatusNotFound, map[string]any{"error": "No submissions found"})
+		return
+	}
+
+	filename := fmt.Sprintf("inject%d_submissions.zip", injectID)
+	w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=%q", filename))
+	w.Header().Set("Content-Type", "application/zip")
+
+	zipWriter := zip.NewWriter(w)
+	defer zipWriter.Close()
+
+	// SubmissionFileName is validated by os.Root at upload time; Team.Name is admin-controlled.
+	for _, submission := range submissions {
+		baseDir := fmt.Sprintf("submissions/%d/%d/%d", injectID, submission.TeamID, submission.Version)
+		file, err := SafeOpen(baseDir, submission.SubmissionFileName)
+		if err != nil {
+			continue
+		}
+
+		zipPath := filepath.Join(
+			fmt.Sprintf("%s_v%d", submission.Team.Name, submission.Version),
+			submission.SubmissionFileName,
+		)
+
+		zipEntry, err := zipWriter.Create(zipPath)
+		if err != nil {
+			slog.Error("failed to create zip entry", "path", zipPath, "error", err)
+			if err := file.Close(); err != nil {
+				slog.Error("failed to close file", "path", zipPath, "error", err)
+			}
+			continue
+		}
+
+		if _, err := io.Copy(zipEntry, file); err != nil {
+			slog.Error("failed to copy file to zip", "path", zipPath, "error", err)
+		}
+		if err := file.Close(); err != nil {
+			slog.Error("failed to close file", "path", zipPath, "error", err)
+		}
+	}
+}
diff --git a/www/router.go b/www/router.go
index 8451208..595420c 100644
--- a/www/router.go
+++ b/www/router.go
@@ -149,6 +149,7 @@ func (router *Router) Start() {
 	mux.HandleFunc("POST /api/injects/create", INJECTAUTH(api.CreateInject))
 	mux.HandleFunc("POST /api/injects/{id}", INJECTAUTH(api.UpdateInject))
 	mux.HandleFunc("DELETE /api/injects/{id}", INJECTAUTH(api.DeleteInject))
+	mux.HandleFunc("GET /api/injects/{id}/submissions/download", INJECTAUTH(api.DownloadAllSubmissions))
 
 	// router.HandleFunc("POST /api/engine/service/create", ADMINAUTH(api.CreateService))
 	// router.HandleFunc("POST /api/engine/service/update", ADMINAUTH(api.UpdateService))