[s2e1] The Siege: Part 3 -

is the season two premiere of the military science fiction series Stargate Atlantis , originally airing on July 15, 2005. The episode concludes a high-stakes three-part arc where the Atlantis expedition faces an overwhelming invasion by the Wraith. Key Plot Summary

: Paul McGillion (Dr. Carson Beckett) and Mitch Pileggi (Colonel Steven Caldwell) join the recurring or main cast. [S2E1] The Siege: Part 3

: Lieutenant Aiden Ford is found alive after falling into the ocean during a fight with a Wraith. However, he has suffered an overdose of Wraith enzyme, which grants him superhuman strength and aggression while making him unstable. Cast and Crew Director : Martin Wood Writer : Martin Gero is the season two premiere of the military