An injured Sheppard is trapped alongside Ronon beneath the rubble of Michael's collapsed compound. Trapped in another debris pocket, McKay and Lorne realize that a subspace burst has already reached Michael.
Light years away, Michael's flagship Wraith Cruiser hurtles towards the compound. Imprisoned onboard, a pregnant Teyla begs Kanann, the father of her baby, to help save her.
Carter leads a rescue mission to the planet. Her team succeeds in digging up McKay and Lorne, but Ronon and a rapidly deteriorating Sheppard are buried far deeper in the rubble. With Michael and his hybrids on their way back to deal with intruders, and the Daedalus already enroute, the question becomes: Who will reach them first?