diff --git a/linked_lists/intersection.py b/linked_lists/intersection.py
index f07e2ae..89e52c8 100644
--- a/linked_lists/intersection.py
+++ b/linked_lists/intersection.py
@@ -11,4 +11,14 @@ def intersection_node(headA, headB):
     """ Will return the node at which the two lists intersect.
         If the two linked lists have no intersection at all, return None.
     """
-    pass
\ No newline at end of file
+
+    if not headA or not headB:
+        return None 
+
+    while headA:
+        while headB:
+            if headA == headB:
+                return headA
+            headB == headB.next
+        headA = headA.next
+    return None
\ No newline at end of file