Push Off Challenge ft. Sam & Mark | Saturday Mash-Up! 

Can Sam or Mark knock Connor Lawson off the top of the leaderboard on Saturday Mash-Up's ultimate challenge - Push Off? And WHO will be pied in the face?!!
Don't miss the next episode of Saturday Mash-Up! featuring the latest episode of The Next Step. Tune in every Saturday morning to CBBC and BBC 2 on TV in the UK.
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