First Battle: The Struggle for Trost, Part 1

First Battle is the fifth episode of the Attack on Titan anime. It is produced by Wit Studio and Production I.G. This episode depicts the start of the Battle for Trost and the destruction of Eren's squad.

Summary
As Eren rushes to attack the Colossal Titan, it swipes its massive arm across the top of the Wall, disabling all of the cannons mounted there. Eren wonders if the titan has some intelligence because its actions have been remarkably coordinated to cause the maximum amount of damage.

The Colossal Titan then reaches out to grab Eren from the air, but he quickly outmaneuvers it and closes in on the nape of its giant neck. At that moment, the titan releases high pressure steam and disappears before Eren is able to cut it.

He returns to the Wall where he is rejoined by the rest of the graduates who were not able to move and participate in the fight. Another soldier comes by and tells them to begin the planned operation for a breach and the graduates leave the area.

Meanwhile, the citizens of Trost are evacuated while first-responder soldiers cover the breach with an array of ditches, cannons, and nets. They begin a defensive attack to keep the Titans outside of Wall with cannon bombardment and 3D Maneuver Gear soldiers.

At the HQ, Franz and Hannah promise to stay together and Armin Arlelt is scared because humanity has no way of plugging the breach, pointing out that the emergency boulder to do the job has not even been dug out yet. As he trembles and cannot fill up his 3DMG gas canister, Eren tells him to get a hold of himself

Trivia

 * Plot hole- when the Colossal titan is releasing stea, Eren could not have been able to reel himself in because it has vanished already