What "Stargate SG-1" 20-th episode about
Stargate Command learns that a planet with a protective shield against the Goa'uld, and once visited by the rouge off world NID team, is now defenseless against an ongoing Goa'uld attack. SG-1 must utilize the service of two of the NID team who visited the planet, who are also currently condemned to a passing sentence on Earth, to help save the planet. However, can SG-1 really trust the rouge NID team members to do the right thing and help them?
Episode number: 20
Episode name: "The Sentinel"
Episode release date: 4 may 2002 at 00:00
Status: aired
Rating: 7.2
