Why Did Batman Knock Out Robin?

Comicbook.com reports Batman is going to some dark places in his latest issues!

"The Fall and the Fallen: Part 2" takes place during 2 different points in time.

Flashpoint Batman was held hostage by Bane recently...

...and Tim Drake tried to console Bruce Wayne about his feelings for Selina. He promptly punches Tim in the face.

Batman issue #72 will be available June 5th.