Hannah knows every second counts. Sally and Olivia fear a young boy has a head injury. Aaron and Laura help a young footballer who's smashed her face, and the school dance is two weeks away!

Daniel rushes to a woman having a life-threatening allergic reaction. Sam and Chris struggle to help a partygoer after an accident in the nightclub district.

Bill rushes to a woman whose heart is racing out of control. While Laura gives a cyclist the all-clear, Aaron happily rides the man's pushbike home.

Olivia and Sally become medical detectives as they examine a woman having potential stroke. The patient is going downhill fast and could lash out at the very people trying to save him.