Stargate Atlantis - The Daedalus vs 12 Wraith Hive Ships
From Season 2 - Episode 1 (The Siege, Part III) Atlantis is saved in the nick of time by the Daedalus, which manages to destroy the other two Hive ships threatening the city. However, 12 more are on their way, and they quickly adapt to the Tau'ri's countermeasures.