The Inquisitor is dead. The Ghost crew has connected with other rebel cells. And a new ally named Ahsoka Tano has emerged. Despite these successes and developments, the fight against the Empire takes a deadly turn, as the evil Sith Lord Darth Vader comes to Lothal.

Ezra, Zeb, Sabine, and Chopper are on a mission to an abandoned medistation in search of supplies when an attack by two of Darth Vader's Inquisitors divides the team.

A new Imperial ship captures Ezra, Commander Sato, and his crew, forcing Kanan and the clone to go undercover as stormtroopers to free the rebels.

In need of new hyperspace routes due to Imperial pressure, the rebels find a shortcut but must first gain permission to use it.

Zeb and Agent Kallus find themselves stranded on an ice planet after a failed Imperial ambush of the rebels. With Kallus injured from the escape pod crash, he and Zeb must work together to survive the harsh conditions.