User blog comment:The Dark Lord of the Sith/Reviving "The Clone Wars" - Episode 1, "The Bad Batch"/@comment-25400554-20141118224737

It was in the fifth CW season, centering around the first four or five episodes. A clone named Fives pretty much uncovers evidence of all clones being born with some kind of bio-chips in their brains (appearantly which force the clones into their programmed obedience if given an executive order, ala Order 66) that registered as tumors on medical scans.