Red blood - what is it and why do we need it? How does it transport important things around the body? Bob the robot needs his first aid badge so he can go to the robot jamboree - the only trouble is he is hates blood. Mark is stopped just in time by expert Charles Drew as he is about to give someone a blood transfusion from a dog!
| Name | Type | Role | |
|---|---|---|---|
| Will Maclean | Writer | ||
| Marc Haynes | Writer | ||
| Jason Forbes | Guest Star | ||
| Simon Gibney | Director |