No News Is Good News - S1.E8

Alone at Catalyst makes a fine time for the team, but of course something has to happen, Kimberely arrives. She says she's a news reporter and soon flatters Mike to the point where he thinks she can do no wrong. The others though aren't so easily convinced and come up with one conculsion: she's a spy!

It's Pi who saves the day and gets rid of Kimberely (after proving that she was indeed a spy), however the consquence is that Pi's mothers finds her at Catalyst and Pi's big secret is finally revealed.