diff --git a/spm_funcs.py b/spm_funcs.py
index 450c1ab..71ea24c 100644
--- a/spm_funcs.py
+++ b/spm_funcs.py
@@ -54,8 +54,14 @@ def get_spm_globals(fname):
     spm_vals : array
         SPM global metric for each 3D volume in the 4D image.
     """
-    # +++your code here+++
-    # return
+    img = nib.load(fname)
+    data = img.get_fdata()
+
+    spm_vals = np.array([
+        spm_global(data[:,:,:,vol]) for vol in range(img.shape[-1])
+    ])
+
+    return spm_vals
 
 
 def main():