Aliens have crash-landed in the Wild West & theyre ready for a showdown in The Good the Bad & the Alien! Can the Doctor Rory & Amy work out which are the good guys & which are the bad? The Doctor finds himself trapped in a virtual world in System Wipe. As he tries to save the characters of the virtual world from being destroyed by a deadly virus Amy & Rory must fight to keep the Doctors body in the real world safe from the mysterious entity known as Legacy.