Steve Backshall ventures into some of nature"s most inhospitable and remote regions. Adventurer and wildlife expert Steve Backshall has spent his entire life getting up close to incredible animals. Now he wants to find answers to his own questions about four of the most monstrous animals on our planet, by entering their underwater world and getting closer to them than ever before. Follow Steve as he ventures into some of nature"s most inhospitable and remote regions to reveal the behaviour and personalities of four monsters , whose wild sub-aquatic life has rarely, if ever, been disturbed by humans. His nerve-wracking journey is fraught with tension as he attempts to challenge the myths and misconceptions surrounding these exceptional creatures and bring their true natures to light. Follow Steve as he joins forces with behavioural specialists, top scientists and extreme divers in order to develop ingenious protocols for diving with fascinating but deadly animals. Together they will hunt down these notorious beasts in order for Steve to do the unthinkable swim with them.