You should watch:

Booby Trap

This was episode number 6 of season 3.

The following characters appeared in this episode:

(voice) (uncredited) Enterprise Computer

Captain Jean-Luc Picard

Christy Henshaw

Chief Miles O'Brien

Counselor Deanna Troi

Commander Wiliam T Riker

Doctor Beverly Crusher

Dr Leah Brahms

Galek Dar

Guinan

Lieutenant Worf

Lt Commander Data

Lt Commander Geordi La Forge

Wesley Crusher