The doctors reveal how much power there is in your farts. Also, Dr Chris trains as a nurse on a ward full of robotic patients, and in Ouch & About Dr Xand opens up the ouch-mobile - a drop-in clinic for all your medical mysteries. Meanwhile, over in accident and emergency, one patient has cut her nose and another has burnt his hand.

The doctors reveal how far your heart can pump blood, Dr Xand meets a life-saving dog, and in Ouch & About Dr Chris is in the ouch-mobile solving more medical mysteries. Meanwhile, over in accident and emergency, one patient's face is swollen with a dental abscess, and another patient has sliced her finger on an electric fire.

The doctors reveal what comes out of your mouth when you cough, Dr Xand gets a front-row seat at a life-changing operation and there are more intriguing medical mysteries to solve in Ouch & About. Meanwhile, over in accident and emergency, one patient has fallen and banged her head, and another has a toy coin stuck up his nose.

The doctors reveal how you taste with your nose as well as your tongue. Dr Xand is on call with the emergency services, and Dr Chris discovers how 3D printing works when he prints his own skull. Meanwhile, in accident and emergency, one patient has surgery on her cut hand, and another has fallen off stilts and cut his eyebrow.

The doctors fill their bladders, quite literally, to show what happens when you go for a wee. Dr Chris meets a robot that can zap bad cells, and Dr Xand is in the Ouch-Mobile ready for more medical mysteries. Meanwhile, in accident and emergency, one patient has a sausage finger and another has swallowed a coin.

The doctors try to trick their body temperatures, the ouch-mobile is open for more intriguing medical mysteries, and Dr Xand tries to stop his body giving him away when he tells fibs in a lie detector test. Meanwhile, in accident and emergency one patient has mystery tummy pains and another has cut his leg on his bike.

The doctors make an unusual type of cheese with Xand's body bacteria, find out what to do if someone breaks their leg in First Aid, and Dr Chris meets a man with a bionic eye. Meanwhile, in accident and emergency, one patient has been injured doing handstands and another has a badly broken arm.

The doctors set fire to food, all in the name of science! Dr Xand goes to an asthma clinic, and in Ouch & About, the ouch-mobile opens its doors to solve more intriguing medical mysteries. Meanwhile, in accident and emergency, one patient has slipped off a slide and broken his wrist, and another needs surgery to fix her dislocated knee.

The doctors get competitive in a race to reveal what happens when blood vessels get blocked, Dr Xand goes for some physiotherapy and Dr Chris is out with the emergency services helping a man with chest pain. Meanwhile, in accident and emergency, one patient has hurt his neck playing rugby and another has cut his head being a superhero.

Dr Chris and Dr Xand have more first-aid tips as they show you what to do if someone chokes. The ouch-mobile opens its doors to help solve more medical mysteries, and the doctors also look at some of the best bits of Operation Ouch! so far.