Behemoth Awakening (ベヘモス覚醒, Behemosu Kakusei) is the eleventh episode of the anime series, Full Metal Panic!
Summary
The hostage exchange goes awry, and instead Tessa and Kaname are taken to the terrorists' hideout inside a tanker. Sousuke regroups with Kurz and Melissa to rescue their friends. During the rescue attempt, Takuma activates the massive Behemoth AS.