Now available on demand is director Ruairi Robinson's The Last Days on Mars, a sci-fi horror thriller that centers on a group of space explorers collecting specimens on Mars.  As our exclusive clip from the film shows, things go terribly wrong during the expedition as each of the astronauts fall victim to a mysterious force.  The clip also reminds viewers to make sure you know who's in the spacesuit before you open the airlock hatch.

Starring Liev SchreiberElias KoteasOlivia WilliamsRomola GaraiJohnny HarrisGoran Kostic, and Tom Cullen, The Last Days on Mars opens in a limited theatrical release Friday, December 6th. Hit the jump to watch our exclusive clip from the film.

Check out our exclusive clip from The Last Days on Mars below, followed by the synopsis and poster:

Official synopsis:

On the last day of the first manned mission to Mars, a crew member of Tantalus Base believes he has made an astounding discovery – fossilized evidence of bacterial life. Unwilling to let the relief crew claim all the glory, he disobeys orders to pack up and goes out on an unauthorized expedition to collect further samples. But a routine excavation turns to disaster when the porous ground collapses, and he falls into a deep crevice and near certain death. His devastated colleagues attempt to recover his body. However, when another vanishes they start to suspect that the life-form they have discovered is not yet dead. As the group begins to fall apart it seems their only hope is the imminent arrival of the relief ship Aurora.

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