Richard Hammond invites two teams to take part in his crazy experiments to win prizes
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The Lab Rats tackle pressure and rockets, making a rocket-powered shopping trolley.
Experiments involving two plumbing plungers, opera singers and a septic tank.
The Lab Rats travel back in time to Roman Britain to retrieve a formidable siege weapon.
The Lab Rats attempt to build a huge tower of bubbles.
The Lab Rats play a game of golf in order to test a build-up of pressure.
The Lab Rats launch a combustion experiment with Ninja Nan's mobility vehicle.
The Lab Rats try to devise an experiment on balance and the transfer of energy.
The Lab Rats perform an experiment to discover the fastest way of sending a message.
Richard and his Lab Rats devise a simple but very strange experiment to reduce friction.
The Lab Rats investigate buoyancy at Richard's top secret testing facility.
The Lab Rats investigate air pressure and the molecular properties of food.
The Lab Rats destroy three portable toilets by igniting different fart gases.
The Lab Rats need to conduct an experiment looking at the distribution of weight.