In Florida, a hurricane is approaching and a mother and son try desperately to tip over a washing machine full of water as more water bubbles up from a drain. Then they're both killed by a strange tentacled creature. Mulder and Scully come down after Arthur Dales, who has relocated to the Sunshine State, tells them he's heard of their disappearance. He also says the parents were both marine biologists, and the mother said her husband was attacked by something with tentacles while on the toilet. The agents head there and find the bathroom door barricaded shut.
A dimwitted deputy finds them there, but helps Mulder check out the bathroom once he realizes he's FBI. They find nothing but a bit of slime and some water from the taps. The deputy sees the water bubbling out of the drain and finds the son's jersey there. The agents try to leave the state, but can't given the hurricane. The deputy does a welfare check on a condo complex and finds a dead person encased in a gelatinous organism, then nearly gets killed himself by a tentacle.
Mulder and Scully find the deputy alive but seriously wounded, having apparently been stung by the tentacle. Mulder also finds a looter and a couple of residents still in the complex. Thinking the deputy has been attacked by a pathogen getting around through the plumbing, Mulder wants to get everyone out of the building, but the hurricane once again makes it impossible.
Mulder thinks the hurricane may have churned up an undiscovered creature and forced it into the city's plumbing. After the deputy disappears from a bathtub full of Epsom salts, he thinks the creature is amorphous and only takes shape when it attacks, using a body's water to reproduce. Mulder is strung by a tentacle, and one resident forces his isolation from the rest of the group. Outside, he notices how a cat from the biologists' residence is hanging out in the rain, unaffected. Scully also realizes that freshwater kills the creature, and has a resident shoot on the sprinkler system as she delivers his girlfriend's baby. Mulder's OK, too. Hooray!
Joel McKinnon Miller, who plays Deputy Greer, also plays Don Embry on Big Love. Valente Rodriguez, who plays Walter Suarez, also played Ernie on George Lopez.
Episode Body Count
Jack, Evan, and Sara Shipley: two marine biologists and their son, all killed by the sea creature.
Slumlord Harry: killed by the sea creature while on the toilet.
Deputy Greer: disappears from his bathtub fever treatment, apparently killed by the creature.
Sea creature: apparently dies after exposure to freshwater.
Cumulative Body Count (130/202 episodes, 1/2 movies)
Humans: 1,519Creatures: 101
Grand Total: 1,682