TV Guide Horror Channel Sunday

A comet collides with Earth, causing a devastating series of quakes, floods and volcanic eruptions. However, when the dust has settled, it turns out worse is to come. The impact has pushed the planet off its axis, and if a team of scientists cannot put it right, the crust will shift, wiping out all life. Disaster thriller, starring Jack Coleman, Holly Dignard and Tyler Johnston

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Army sniper John Carter is accidentally teleported to a distant alien world in a flawed military experiment. He discovers he is able to perform superhuman feats, but when he is captured and enslaved by the natives, Carter must prove his worth by helping to rescue an endangered princess. Sci-fi thriller, starring Antonio Sabato Jr, Traci Lords, Matt Lasky, Chacko Vadaketh, Mitchell Gordon and Noelle Perris.

Part one of two. A group of strangers, including a security agent, a husband torn between his mistress and his family, and a recently married pop star must journey through the upside-down vessel in an attempt to escape. Starring Adam Baldwin, Rutger Hauer, Steve Guttenberg, Sylvia Syms, Alex Kingston and Clive Mantle

Part one of two. A group of strangers, including a security agent, a husband torn between his mistress and his family, and a recently married pop star must journey through the upside-down vessel in an attempt to escape. Starring Adam Baldwin, Rutger Hauer, Steve Guttenberg, Sylvia Syms, Alex Kingston and Clive Mantle

Colt accepts an assignment to bring in a mysterious hit-woman, who seems to have developed a taste for expensive art. Lee Majors stars