The Unknown (S06E01)

Clone trooper Tup falls victim to an inexplicable mental condition that leads to the devastating death of a Jedi Master. Confused by his violent behavior, he is sedated and transported back to Kamino for further investigation. In the meantime, Admiral Trench updates Count Dooku about the incident, suspecting that there might be a more profound reason behind the act. Anakin Skywalker and ARC Trooper Fives join Tup on his journey home, but their return is interrupted by a surprise attack from Separatist forces.