Steve and the crew make their way to California's Pacific coast for a fun-filled, adrenaline-fuelled ocean adventure. Here Steve dives with an underwater speedster, the mako, the fastest shark in the seas. Skittish by nature, and with explosive speed, getting to see one at close quarters proves to be a tough challenge. Unlike the extremely inquisitive blue shark that decides to investigate Steve up close, giving him a shark encounter he will never forget. It's not just the sharks that are curious either. The aquatic acrobatic, the California sea lion, pays Steve a visit and shows off the underwater agility that makes it such a formidable hunter. Steve then gets to venture into a stunning underwater kelp forest, where he is mesmerised by a huge, beautiful but deadly jellyfish before emerging from the kelp to come face to face with one of the most bizarre looking predators he has ever seen, the sunfish.