Mike helps to create an artificial underwater reef that helps coral and fish populations recover from areas that have been suffering from high pollution.
To celebrate their 40th anniversary, magicians Penn and Teller ask Wayde and Brett to build a tank for their backstage "Monkey Room," but a problem occurs.
Howie Mandel asks ATM to build a tank to liven up his production office, but he doesn't know what he wants, so Wayde and Brett must design it without guidance.
Amanda tries to get medical attention for a pit bull puppy with a fractured jaw and Latte the Dalmatian, who could lose his sight due to an eye condition.
In Oregon, John meets a woman who is on a mission to teach cats how to swim; in San Francisco, John visits a woman who makes jewelry out of her cat's fur.
After taking over the red river hog habitat, a gazelle gives the team a surprise; staff race to prepare a den when they suspect the Amur leopard is pregnant.
Tia and Earl face a decision about an elderly hound that requires medical assistance at an Alabama shelter; an abandoned dog roams a trash-filled backyard.
Tia hurries to save four dogs from euthanasia at a remote shelter in Louisiana; Mariah and Toney work with a shy dog in hopes of finding it a forever home.
Tensions reach a new level when Paul and Jimmy deal with an all-time high number of calls about nuisance alligators; alligators are spotted near golf courses.
Jimmy books an alligator-wrestling show in S.C. and takes his younger brother, his best friend and the best volunteers with him without consulting Paul.
Paul tries to capture a gator that is already facing death from another trapper's snare; Tre arranges a risque photo shoot with gators and swimsuit models.
The guys must bring ashore six huge alligators and take blood samples from each for a research project; Paul is angered by what Tre uses to line the truck bed.
After the terrifying task of capturing four lethal alligators, Paul and Jimmy come face-to-face with a venomous water moccasin and a six-foot rattlesnake.
Paul tries to capture a gator that is already facing death from another trapper's snare; Tre arranges a risque photo shoot with gators and swimsuit models.
The guys must bring ashore six huge alligators and take blood samples from each for a research project; Paul is angered by what Tre uses to line the truck bed.
After the terrifying task of capturing four lethal alligators, Paul and Jimmy come face-to-face with a venomous water moccasin and a six-foot rattlesnake.
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