Stargate Atlantis (2004)

S5E14 The Prodigal

Michael Kenmore has successfully penetrated Atlantis with a force of Hybrids, effectively sealing off Stargate Operations and the surrounding areas to thwart any efforts to reclaim it. His sinister objective is to abduct Teyla Emmagan and her child to enhance his Hybrids, ultimately planning to obliterate the base afterward. In the meantime, Lt. Colonel John Sheppard, Dr. Rodney McKay, and their team are racing against time to retake the city before Michael can escape with his targets.