Mind your head. Cleaver is back! And this time he's brought family!
A young man and his girlfriend move into an old mansion home, where he becomes possessed by a desire to control ancient demons.
Amy, her husband James and their baby Sarah travel to Mexico to sail in the yacht of their reckless friend Dan with their common friends Zach and Lauren and celebrate the thirtieth birthday of Zach. They are introduced to Dan's girlfriend Michelle and they drink and recall moments of their past while navigating. Miles away from the shore, Michelle suggest to stop the yacht and swim in the calm water. Amy stays in the boat since she has a childhood trauma with ocean and Dan stays with her. Later, the irresponsible Dan pushes Amy overboard, falling with her in a prank. Once in the water, the group realizes that Dan forgot to put the embarkation ladder and the freeboard makes impossible to climb to the main deck of the yacht. With the baby alone in the boat and stranded in the open sea, they panic and their desperation lead them to a tragic fight for survival.
Maltazard, the Evil M, is now 7 feet tall and evolving among the humans, causing terror wherever he goes. His goal is simple: forming an army of giant henchmen and ruling over the universe. Meanwhile, Arthur is still a Minimoy, and thus in a state where he's unable to fend him off. With the help of Selenia and Betameche, he hatches a plan to regain his usual size: all they must do is infiltrate Arthur's house through the pipeworks, catch an electric train from his bedroom to his grandfather's study and find an elixir that will make him grow back to his human size. Sounds simple enough, if it weren't for Darkos, Maltazard's own son, hot on their tails.
LAPD lieutenant Mike Harrigan (Danny Glover) and his cocky detective partner Jerry Lambert (Bill Paxton) soon realize that what seemed a bloody feud between voodoo high priest King Willie's (Calvin Lockhart) Jamaican gangs and Ramon Vega's (Corey Rand) Colombian drug gang is actually the work of a scary third party. Peter Keyes's (Gary Busey) federal team shields the crime scene even for the LAPD, but after forensics proves it must be an alien, who keeps making victims, the chase brings them all together.
A group of sixties teenagers bored with the party they're at drive out to a deserted old mansion, but their laughter turns to fear when one of them is killed in a frenzied knife attack. Another of them persuades the rest that they should solve the murder themselves rather than go to the police, not surprisingly opening the way to further carnage.
On the last day of the first manned mission to Mars, a crew member of Tantalus Base believes he's made an historic discovery; fossilised evidence of bacterial life. Unwilling to let the relief crew claim the glory, he disobeys orders to pack up, and goes out on an unauthorised 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 begin to realise; the life-form they've discovered is highly dangerous to all human life.