General Krell orders Captain Rex and the clone troopers of the 501st legion to conquer a heavily fortified Umbaran airbase, and will not accept anything less than victory.

Supreme Chancellor Palpatine goes to Naboo guarded by Jedi knights, meanwhile Cad Bane, a disguised Obi-Wan and a pack of bounty hunters put their plan into action.

The fatal Blue Shadow Virus is released, infecting Ahsoka, Padmé and many Clone Troopers – and giving Anakin and Obi-Wan just 48 hours to find the antidote on a mysterious…