Family Ties

S10 E18: To Vala's (Claudia Black) dismay her father Jacek (Fred Willard) contacts Stargate Command claiming to have knowledge of ArkadΓÇÖs ships that were en route to bomb earth when he was killed by Teal'c (Christopher Judge). With it likely the mercenaries still believing they are to follow through with their bombings SG Command is forced agree to the deal. Regardless of Vala's warnings about Jacek's devious and scamming nature General Landry (Beau Bridges) has no option but to grant him sanctuary on earth after his information proves to be true. Jacek trying to assimilate into earth's population shows no inclination of give up his scamming ways. While SG struggles to figure out what to do with him Vala continually rebukes every attempt her father makes at reconciliation with his estranged daughter. Wearing down SG's patience and Vala's resolve they discover Jacek trying to break home arrest and catch him consorting with one of Arkad's Jaffa splinter cells stationed on earth. Claiming he was trying to stop another of Arkad's ships destined to destroy Cheyenne Mountain and the Stargate the team must put their trust again in Jacek to help them locate the cloaked ship and disable it before it can explode.