Katie Cleary

Greg's over-the-top romantic gestures override Katie's yearning for a low-key Valentine's Day. Oliver has an expensive gift for his crush. Taylor tries to outwit her parents so she can go to a party.

Walden discovers how challenging it is to be intimate with women with his foster son, Louis, in the house. Also, Herb (recurring guest star Ryan Stiles) asks Alan if he can go on a date with Lyndsey.

As the CSI team investigates the death of a renowned archaeologist, Stella's life is put in danger over the archaeologist's possible discovery of a rare coin from ancient Greece.