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Three brothers from Somerset and a team from Loughborough University are challenged to build ingenious crazy devices that will allow Richard to straighten his duvet and "Make the Bed without Leaving the Bath Tub."

Three Social Media Stars take on three civil engineering students from the University of Southampton, as they attempt to create ingenious chain reaction machines that allow Richard to boil his kettle while sitting on the lavatory.

Three amateur British pilots take on the American team Wildcards in challenge to build a chain reaction machine that'll allow Richard to feed his dog without leaving his sun lounger in the garden. With a spot in the semi-finals at stake, the rival teams let their imaginations run wild - even employing a little espionage on each other's work in a bid to pull ahead, but will this tactic impress judge Zach?

In the final 1st round Heat: a fascinating team of physics-obsessed students from Leeds University take on three wacky yet captivating Spanish-born brothers in a bid to build a machine that allows Richard to water his garden plants without ever having ti get up from watching the TV.

In the first of the semi-finals, two teams of brothers go up against each other to build jaw-dropping chain reaction machines to enable Richard to dust his ornaments without getting out of bed

It is all to play for in the second semi-final of the crazy contraption building competition as the teams are tasked with creating a chain reaction machine that allows Richard to cook sausages in the kitchen without leaving his study.

It is the grand final of the crazy contraption building competition as two teams battle to build the best party machine for Richard's house and garden - all made out of everyday objects.