To obtain this achievement you will have to complete the 6 chapters in which include.
Episode 4
Chapter 1: Secret Plans
Chapter 2: Through the Jundland Wastes
Chapter 3: Mos Eisley Spaceport
Chapter 4: Rescue the Princess
Chapter 5: Death Star Escape
Chapter 6: Rebel Attack
Any Questions, Just send me a message.
Gt: xGodDogx