diff --git a/src/services/pis.services.js b/src/services/pis.services.js
index 4df4595..54cea13 100644
--- a/src/services/pis.services.js
+++ b/src/services/pis.services.js
@@ -7,7 +7,11 @@ async function findPisByOrigDest(start,end) {
     log.out(`pisServices.findPisByOrigDest: Searching for PIS for Orig: ${start}, Dest: ${end}`, "dbug")
     /* Here, I need to query the collection for a document with a stops array starting with $start
        and ending with $end.  This will return an array of one or more pis codes and stopping patterns*/
-    const search = db.query("pis", {query:query})
+    // Query to find first stop: {$expr:{$eq:[{$first:"$stops"},start]}}
+    // Query to find end stop: {$expr:{$eq:[{$last:"$stops"},end]}}
+    // Attempt at combining the queries:
+    // {$and:[{$expr:{$eq:[{$first:"$stops"},start]}},{$expr:{$eq:[{$last:"$stops"},end]}}]}
+    const search = db.query("pis", {$and:[{$expr:{$eq:[{$first:"$stops"},start]}},{$expr:{$eq:[{$last:"$stops"},end]}}]})
     return search
 }