The Virzi triplets return to conquer a new course; a trio of dads and three comics also play with fire.

A giant game room flooded with lava presents a challenge for kick-ballers, ballerinas and black belts.

Fearless moms and dads take on a haunted attic with magma mixed with mayhem.

Three teams enter a lava-filled child's room, but only one will prevail.

Reality stars face a fate worse than being unfollowed on Instagram - falling into a pit of lava.