Torri Higginson

When Ducky determines that one of his research cadavers was the victim of murder, the NCIS team uncovers a web of criminal intrigue.

After Ducky is stabbed at a crime scene, the team uncovers disturbing secrets from the good doctor's past.

When Rodney McKay (David Hewlett) realizes Atlantis has started shutting down artificial gravity and collapsing protective shields to compensate for a damaged power system he turns off all non-essential systems. But when the problem persists McKay is forced to collapse the shield to the point where it is only protecting Atlantis' main tower leaving the rest of the city exposed to space.With the protective shields down and an asteroid belt fast approaching Lt. Col. Sheppard (Joe Flanigan) leads a group of Atlantis personnel on a desperate jumper mission to clear a path for the city. Meanwhile Dr. Keller's (Jewel Staite) attempts to resuscitate a comatose Elizabeth Weir (Torri Higginson) reveal that her patient has severe brain swelling and will require radical surgery. McKay runs the calculations and realizes there's an even bigger problem: in just 28 hours the city's shields will fail completely and all of Atlantis' inhabitants will succumb the vacuum of space.

The SG-1 team travels to Atlantis to attempt to establish a stable wormhole to the Ori supergate which will prevent the Ori from sending more ships to Earth's galaxy. In order to do so Carter (Amanda Tapping) and McKay (David Hewlett) must detonate precisely calibrated nuclear warheads to cause a wormhole to jump from a nearby spacegate to the supergate without destroying their ship the Odyssey in the process.Meanwhile Daniel (Michael Shanks) and Vala (Claudia Black) take advantage of their time at Atlantis to research the Atlantis database for clues to the location of Merlin's weapon. During their research they are met by Morgan Le Fay an ascended Ancient posing as the Lantian holographic interface who gives them the names of two planets where the device might be located. But can she be trusted? Weir (Tori Higginson) detects a Wraith ship headed towards the Odyssey and is unable to relay the message due to the interference of the nearby black hole. And the Odyssey detects an Ori ship headed toward the supergate. Will the team be able to complete their mission before they are attacked?

Lt. Col. Sheppard (Joe Flanigan) leads his team on a daring raid on the Replicator home world in a bid to secure a ZPM that will save Atlantis. The key to their operation is none other than Dr. Elizabeth Weir (Torri Higginson). Directed by Weir and McKay (David Hewlett) from the jumper Sheppard and Ronon (Jason Momoa) head deep into the Replicator city to acquire the sought after prize. But a surprising revelation concerning a long-dormant Replicator sub-routine changes the plan forcing Sheppard and company to forego their quick escape. When the Replicators become aware of the incursion Sheppard's team must keep them at bay or else abandon the mission and their hope of saving Atlantis. Meanwhile Colonel Carter (Amanda Tapping) aboard the Apollo searches in vain for the missing city.