Shakedown: Return of the Sontarans is a film spin-off of the long-running British science fiction television series Doctor Who. It was released direct-to-video in 1995 and was produced by the independent production company Dreamwatch Media, a division of Dreamwatch magazine. Initially available only through mail order and specialty shops, it was subsequently released to retail by Reeltime Pictures in 1997. It features two races of aliens, the Sontarans (first introduced in the Third Doctor serial The Time Warrior, and appearing in several subsequent stories) and the Rutans (who were first mentioned in The Time Warrior, and appeared in the Fourth Doctor serial Horror of Fang Rock). The Sontarans and Rutans were licensed from the estate of their creator Robert Holmes, although the appearance