Disaster strikes when a comet is discovered hurtling towards Earth. Panic ensues as humanity grapples with extinction. Two solutions emerge: a NASA mission to nuke the comet and a billionaire's underground ark to save a select few. Astronaut Spurgeon Tanner leads the risky mission, while a young girl named Leo tries to warn the world. Will the team succeed in diverting the comet, or will Earth face a fiery apocalypse?