Chewbacca goes back in time to save Will Smith from the Wild Wild West, but when he gets there he doesn't have enough room to get the DeLorean back up to 88mph, so he calls up Han Solo and together they strip down the DeLorean and put all of the time travel components into the Millennium Falcon. During their misadventures, Will Smith says, "Ah hell naw!" a lot and Han gets pissed off at Chewy because he won't take off the damn cowboy outfit and keeps getting sand all over the cockpit.