Darths & Droids is an "RPG screencap comic" in the vein of DM of the Rings. The characters in the comic are roleplaying game (RPG) players. The Game-Master (GM) guides the players as they take the roles of characters on a quest in a science-fiction universe. The visuals come from screencaps (still frames) of Star Wars movies.
Our GM is an easy-going guy who most of all wants his players to have fun. He's not straitjacketing them into his preconceived story; he gives them free rein to do pretty much anything they want, and then builds (more or less) logical consequences on top of that. He allows his players to improvise and invent some of the details of the setting, so long as they don't conflict too badly with what he'd originally planned, and that it can be worked into the story somehow. The comic takes place in an alternate universe, where Star Wars does not exist. The players don't know anything at all about Jedi, or Tatooine, or Anakin Skywalker before the game begins. The GM has some sort of storyline and setting details in mind, but not fully detailed. He creates the setting in response to what the players do. If the players make some (not patently ridiculous) assumption, or improvise something in order to explain what they're doing, then the GM adopts it and adds it to the setting.
Volume 5 covers the events of The Empire Strikes Back.