Wolfblood's Leona Vaughan joins Sam and Mark in the studio. There is also music from singing sensations Collabro, and the boys embark on their toughest In Yer House challenge yet.

Olympic medallists Beth Tweddle and Nile Wilson join the boys for more surprises and weekend wind-ups. A Beyonce fan takes to the air to win a fantastic prize, parents get wet in Karasoake and Bars and Melody perform their latest hit.

Sam and Mark visit a relationship counsellor who encourages them to look back on some of their happiest times together from the series. Featuring plenty of wind-ups, laughter and music to kick-off the weekend.