Here are the preview clips for this week’s episodes of Stargate Universe and Sanctuary.

Stargate Universe – “Earth” (Friday at 9:00PM on Syfy)

With the situation onboard the Destiny dire, General O’Neill (RICHARD DEAN ANDERSON) and Home World Command orders Col. Young (LOUIS FERREIRA) to execute a high risk plan concocted by the IOA scientists which, in theory, could return the crew to earth. Col. Young tries to buy more time so that he can consult those on the ship whose lives are at stake. While using the communication stones, Camile Wray (MING-NA) is approached by IOA representative Dale Strom (CARLO ROTA) who suggests that she steer opinion on the ship in favor of the plan.

Eli (DAVID BLUE) and Chloe (ELYSE LEVESQUE) are allowed to use the communication stones to visit earth and their loved ones for what may be the last time. Their homecoming is not what they expected and the two try to drink away their worries at a club (featuring Janelle Monáe), but are unable to ignore the looming fate of the Destiny that they have left behind.

Catch up on any episodes you may have missed:

Sanctuary – “Pavor Nocturnus” (Friday at 10:00PM on Syfy)

Dr. Helen Magnus (AMANDA TAPPING) wakes up on the floor of the Sanctuary with no recollection of why or how she got there. Disoriented and bewildered, she discovers her office scarred with bullet holes, equipment broken in pieces and layered with dust and the lab left only with devastating remnants of a horrific battle scene. With no signs of life to be found, Magnus is completely baffled and shaken. To gather her thoughts, she steps up onto the Sanctuary’s rooftop parapet, but is shocked by the scene before her. Instead of the lights of New City, she looks out to a dark, cratered landscape…the city is decimated.

Later, she encounters two men, heavily armed. Before she can ask any questions, one of the men draws a stun gun and fires it at Magnus, taking her down. When she awakens, she finds herself in an abandoned warehouse with the same two men. They aggressively hose her down, scrubbing her skin raw and leave her soaking wet, shivering and distraught. Exhausted, she curls up on the floor confused and temporarily defeated. When a third man enters the room, she braces herself for another assault. But she is both surprised and relieved when she realizes the man standing before her, although hardened and battle-scarred, is none other than her colleague and friend Will Zimmerman (ROBIN DUNNE). She starts to ask him questions, but he forcefully shuts her down and accuses her of being an imposter. He explains coldly that she could not possibly be who she claims because Helen Magnus… died three years before.

Catch up on Season Two: