Operation Ouch!

The Doctors reveal what lurks inside the plaque bacteria on your teeth, Dr. Chris uses a remote control car powered by his own wee and Dr. Xand decides to get his Verucca treated! Meanwhile over in accident and emergency one patient has some grit in her chin and another has a screw stuck up his nose.

The Doctors meet Larry the vomiting robot to show you the power of puke and Dr. Xand goes on an emergency night-time mission on a motorbike to deliver blood to a hospital urgently. Meanwhile, over in accident and emergency one patient has fallen off his bike and another has a football injury.

The Doctors take a super close-up look at how the eye works and Dr. Chris finds out what body fat does - by looking at some of his own under a microscope. Meanwhile over in accident and emergency one patient has a mystery rash and another has a bad infection under her fingernail.

Dr. Chris uses a tiny camera to reveal what happens in his throat when he swallows food and Dr. Xand enters a special chamber that removes sensory data from his brain. Meanwhile over in accident and emergency one patient has a broken ankle and another has split her earlobe.

The Doctors take a closer look inside their ears to prove how earwax has a really important job to do and Dr. Xand meets a pioneering professor who makes body parts. Meanwhile over in accident and emergency one patient has injured her toe and another has swallowed a hair clip.

The Doctors show you the awesome work that goes on inside your liver and Dr. Chris extracts snot from members of the public for a very useful experiment. Meanwhile over in accident and emergency one patient has a massive lip from an allergic reaction and another has surgery to repair his broken nose.

The Doctors prove that we all have invisible ink inside our bodies and Dr Xand sees head lice removed from someone's hair with a vacuum cleaner! Meanwhile over in accident and emergency one patient has banged her head on a telegraph pole and another has lost a piece of crayon in her ear.

The Doctors use real stomach acid to do a gross experiment with it to reveal how your digestion process starts and Dr Chris proves that the younger you are the more sounds you can hear! Meanwhile over in accident and emergency one patient has broken his arm tripping up a kerb and another has banged his head on the handlebars of his bike.

The Doctors show that your breath is just as unique as your fingerprints and Dr. Chris goes behind the scenes of medical drama "Casualty" to see how they make fake body parts look so realistic. Meanwhile over in accident and emergency one patient has a nasty infection on his cheek and another has something stuck in his ear!

Dr. Chris and Dr. Xand show you an awesome body trick to amaze your friends with and reveal another way your brilliant body heals itself if you get injured. The doctors also look at some of their best bits of Operation Ouch so far.