Today I'm going to tell you all about a little film from 1979 called Prophecy. An evil paper company has bought up the rights to log thousands of acres of virgin forest in Maine, but a group of native americans has decided to try to stop them. The EPA decides to step in and investigate whether or not the logging operation is okay to go on. They bring in a fancy schmancy public health specialist from New York City along with his wife Maggie who's pregnant but hasn't yet spilled the beans. It becomes clear early on that something more than just logging is going on in that forest but no one wants to assume responsibility. A group of loggers has gone missing, along with the entire search and rescue team sent to find them. The paper company blames the indians saying that they're just trying to scare the other loggers.
Right away our health specialist Dr. Rob Verne witnesses some really funky shit. When fishing on his first day in Maine he sees an outrageously large salmon that he just knows isn't naturally that size. Maybe because it's plastic, but who knows. Later that night, after he and Maggie eat his (normal sized) catch, an evil bloodthirsty raccoon with super human strength breaks into the cabin and tries to kill them. John is finally able to toss it into their fireplace and kill it. He decides that the cuckoo coon didn't have rabies so he sends it to a lab in New York.
The next morning he's approached by some of the Indians who want to tell him their side of what's going on. They walk to one of the elder's camps while they tell Rob and Maggie about how their simple fishing way of life has changed since the paper company came to Maine. They say that recently people in their village have developed strange disabilities and many of their women have been have miscarriages, still births, or mutated babies that they're forced to mercy kill. At the camp they see something strange in the water and fish it out, finding it to be a tadpole the size of a squirrel. It doesn't take our Robby long to figure out that the paper company has been using mercury in their operation and that the Indian population has been suffering from mercury poisoning and that the entire food chain has been affected.
Later that night a family is camping in the woods and is attacked by a giant plastic monster. We get ripped off when it comes to the gory fun stuff, all we get to see is this bloody hairless bear-like creature roar and open it's puppet mouth. As the youngest boy tries to hop away still zipped up in his sleeping bag the monster tosses him into a boulder. He hits the rock so hard that his sleeping bag explodes into a hilarious cloud of feathers (sans blood). At least now we know what we're up against.
The next morning Rob goes to collect blood samples from the Indians to prove that they're suffering from mercury poisoning and the head of the paper company arrives with the police. He accuses the Indians of violently murdering the sleeping family to scare away his logging crew. The police insist on taking away the leaders of the Indian camp and putting them in jail. Rob goes the crime scene to collect evidence and Maggie stumbles upon two mutant bear cub puppets, one alive and one dead, laying in the river. They take the mutated cubs with them as evidence of just how high the mercury levels must be in the waters near the paper plant. Maggie decides this is the perfect time to tell Rob that she's pregnant and that she fears that she may have a mutant baby now herself since she had eaten fish from the same waters that the Indians (and bear puppets) have.
The giant mutant mama bear arrives at the same moment looking for her babies and she manages to kill a couple peeps, maim some others, and scare the living turds out of everyone else before they escape to some tunnels below the camp. They find a car and try to escape but Mutant Mama finds them and tips the car over. One of the passengers who was injured before can't run off gets his head bitten off (off screen of course) leaving a headless and annoyingly bloodless corpse. The bear follows the the others as they swim their way across a lake. They reach the other side and look back to see that the bear seems not to be able to swim and they all celebrate as she drowns. Surprise! She didn't drown and pops back above the surface right in front of them. They run to the Verne's cabin and barricade themselves in but Mutant Mama rips the roof right off the place. They start shooting at her, Rob with a gun and the Indians with bow and arrow, but she manages to keep at her murderous rampage. Just before she picks Rob up to munch on him (off screen) he picks up an arrow and starts stabbing her in the throat to death until she dies.
Oh happy day, Mutant Mama is dead (and so is everyone else). Robby and Mags jump a plane back to New York and Maggie goes into the hospital to give birth. No mention is made to whether the baby is healthy or not. Just as we think it's all over, back in Maine another mutant bear rears it's ugly puppet head just before the credits role. DUN DUN DUN!!!
The end.
The moral of the story is pregnant women shouldn't eat fish from waters with high mercury levels.