Farscape
Liars, Guns and Money, Pt. 2: With Friends Like These?
S2 E20:
Crichton and his friends have stolen some treasure in order to facilitate the release of D'Argo's son. Crichton's plan is to intercept the slave trader with the help of some aliens they have encountered.
Starring
Wayne Pygram, Paul Goddard, Claudia Karvan