The Mystery of Chopper Base

"The Mystery of Chopper Base" is the eighteenth episode of the second season of the animated television series Star Wars Rebels. The episode, directed by Bosco Ng and written by Steven Melching, will premiere on March 23, 2016 on Disney XD.

In the episode, the rebellion is beginning to set up their new base on Atollon when Captain Rex and another pilot are taken captive by spider-like creatures. The crew of the Ghost must rescue Rex and escape from the creatures' lair, and figure out how to keep them at bay&mdash;lest they not be able to set up their new base.

Official description
Kanan, Ezra and Ahsoka prepare to depart to unravel Vader's secret, while the rebels find a way to fend off the predatory creatures that occupy the planet.