Bad news for the astronauts inside Ruairi Robinson's jolting sci-fi thriller: a visit to Mars is no walk in the park. The dust-clouds swirl, bacteria blooms inside a nearby rock fissure and fallen comrades return as flesh-eating zombies. As if that weren't enough, our band of estimable actors have to contend with a storm of B-movie dialogue and the remorseless hammer blows of a stock horror plot line. "You'll never see home again," croaks one of the undead. The mission's bound to get worse before it begins to get better.