Shingeki no Kyojin Episode 21: 57th Expedition Beyond the Walls, Part 5

info: MAL/wiki/AniDB

Erwin tells Hange that it was a mistake to think all humans who can transform into Titans are like Eren when the Female has unique abilities, while elsewhere the mole transforms into the Female Titan and chases after Levi's squad. Eren wants to transform into his Titan form, but the squad tells him to trust in their skills and keep moving forward...

Awesome episode! There was lots of action, gore, decapitations and Mikasa screaming "give him back".