Complete story — includes the ending
With the supply depot swarming with Titans, Armin has the idea of luring the mysterious Titan there to defeat them. His plan works, but while the mysterious Titan is able to kill the enemy Titans outside, seven smaller Titans are in the fuel storage area. With their equipment out of fuel, Armin devises another plan. The survivors shoot the Titans in the eyes to blind them, while seven others jump to finish them off. This, too, is successful and having replenished their fuel, the soldiers prepare to retreat. Everyone is surprised to see the Titans attacking and cannibalizing the mysterious Titan, who defeats them before collapsing. They watch in shock as Eren emerges from its body, alive. Armin realizes that Eren's severed leg and arm have somehow regenerated.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Attack on Titan season 1. Reference markers and HTML formatting removed. · Content license