Hannah Montana Season 2 Episode 7

Lily has a new boyfriend, Luke. Miley catches Lucas making out with another girl. Miley proves to Lily that Luke is cheating on her. Someone steals a pair of sunglasses and Rico installs a new security system to prevent any other thefts.

Title: My Best Friend's Boyfriend

Miley catches Lilly's new boyfriend Lucas kissing another girl, and plans to make Lucas flirt with Hannah, just to prove to Lilly what a lousy boyfriend he is; Rico invents an unnecessarily complicated and high-tech security system for "Rico's", much to Jackson's dismay.