Overview: A 71-year-old man is left with a severely broken ankle when he is knocked off his bike by a dog. Paramedic Sam Grimson and student paramedic Ayaz Ali are sent to a park in Birmingham to help. Then they're off on a 999 for a man who's been trapped for over 20 hours with a broken leg. And paramedic Laura Flintason and technician Jatinder Mahli attend a patient who may be having a stroke.