A call from NBA star Dwight Howard sends the duo to Houston. But Howard doesn't just want a fish tank, he also wants a new home for his snakes.

NASCAR champion Ryan Newman gets ATM to make a desk aquarium, and Red Sox star Shane Victorino asks the guys to build a Hawaiian-themed tank.

Mireya and Ronny return to where they heard whistles and saw glowing eyes. Meanwhile, Mireya agrees to be bait in order to lure out Bigfoot.

Attack survivor Jenny Oliver and researcher Kina Scollay are on a quest to find out if the mysterious Sevengill sharks are targeting divers- and are they hunting in packs?

The Raneys put their ingenuity to the test on a homestead in Hawaii that was destroyed by lava. They need to find a way of protecting it from future eruptions.

The staff at the Sanccob Seabird Rescue Centre in Cape Town race against time to help a penguin contaminated by oil, and wannabe dad Winston takes his nest-building too far!

The Centre's grumpiest resident greets a new arrival that melts his icy heart. Princess - queen of the resident penguins - faces the biggest loss of her young life.