13-th episode of 9-th season "Stargate SG-1"

What "Stargate SG-1" 13-th episode about

The SGC receives an IDC from SG-1, but it's before they are suppose to be back. The team arrives, and then another duplicate SG-1 team arrives, this time, on time. Then several more duplicate SG-1 teams arrives. Carter believes the duplicate teams are from parallel universes. However, one of the duplicate teams seems to have an ulterior motive and a plan. A plan that puts the real SG-1 team in eminent danger.

Episode number: 13

Episode name: "Ripple Effect"

Episode release date: 21 january 2006 at 01:00

Status: aired

Rating: 8.1