The empire strike back

It is a dark time for the Rebellion. Although the ****
Star has been destroyed, Imperial troops have driven the
Rebel forces from their hidden base and pursued them across the galaxy.
Evading the dreaded Imperial Starfleet, a group of freedom
fighters led by Luke Skywalker has established a new secret
base on the remote ice world of Hoth.
The evil lord Darth Vader, obsessed with finding young
Skywalker, has dispatched thousands of remote probes into
the far reaches of space....