Stargate Atlantis/Recap/S05/E11 The Lost Tribe

The shield is successful in containing most of the explosion, but Atlantis is now without a Stargate. They are hailed by the Daedalus, which has been seized by Todd, who is holding the crew hostage in exchange for the "Attero Device". However, he changes his demands to the location of the Attero Device instead. The only problem with allowing the Wraith to destroy the device, however, is that Rodney and Daniel are still on the planet. So; Keller and Ronan take back the Daedalus, Rodney and Daniel escape, and Sheppard and Zelenka hitch a ride to the fun on a Traveler ship. (Remember them?) Daniel and Rodney take out the device in the standard life threatening fashion, the Traveler ship saves the Daedalus, Daniel and Rodney are rescued, and everybody's happy. Except the titular lost tribe, who are blown up.

Tropes:

 * Die Hard On an X: Ronon and Keller
 * Ramming Always Works: Todd's plan for the Daedalus