Dr Chris and Dr Xand investigate whether farts could power a rocket, and Gladiator Dynamite tests Dr Dan and Dr Raph's dunking skills in an epic Body Battle!

The doctors investigate noisy tummy rumbles and share the Top 5 Bizzare-est Body Parts You Never Knew You Had! Meanwhile, Dr Chris looks at the reality of fake organs.

What would it look like if a lifetime's worth of tears fell in one massive drop? Dr Xand does a poo for the benefit of science, and minds are bent by street artist Xandsy!