Elliot was keeping an eye on a motercycle gang and gave Kathy a call
Elliot: Kath, I gotta work late...That's tonight? No, no, no, no, no, no. I went to Elizabeth's last school play. It was "Diary of Anne Frank". I was there opening night...Babe, Babe, Babe- I gotta go
A motorcycle gang member came by, pouring beer on Elliot's car. Turned out he's an undercover cop and told Elliot to see his partner nearby for any information he may need
Elliot: All right, you know something? I gotta go to see my kid's play...
Elliot pays for Olivia's bail; she was being framed for murder
Olivia: Does Kathy konw you mortaged your house for me?
Elliot: Well, it's not at risk. You're innocent