Actor and comedian Jack Whitehall challenges the Sidemen to a race across the greatest city on earth - London! Unfortunately, the guys forgot to check the designated method of transportation before signing up for the deal.

Legendary Club DJ Kristian Nairn (who also just happens to be Game of Throne’s Hodor!) challenges the Sidemen - along with special guest JME - to join him in investigating the strange goings on in one of the UK’s most haunted houses. No one would have guessed just how terrifying the invitation turns out to be…

Seasoned Russian Cosmonaut Sergey Volkov challenges the Sidemen to reach new heights - the very edge of space! They must come train with him in Moscow and prepare to embark on the infamous zero gravity flight - The Vomit Comet. Will it live up to its name? Oh yes it will…

All 7 Sidemen embark on an adventure through the Moroccan desert with Steve-o, however two draw the short straw and don't have the same luxury as the rest of the guys.

World famous adventurer Bear Grylls challenges the Sidemen to join him to learn some basic wilderness survival skills. Unbeknownst to the guys, he plans to test them by setting them loose - and then hunting them down.

World famous DJ and avid snowboarder Steve Aoki challenges the Sidemen to join him on the mountain slopes of Austria for an all out alpine battle. Winner takes the cake… but as usual, it’s never that straightforward when the Sidemen and cake are involved.

Nicole Scherzinger is in a bit of a squeeze… She’s been kidnapped by her evil twin and has challenged to Sidemen to rescue her. All is not what it seems for the boys in the dreamlike Balearic island setting where Nicole awaits her heroes.