Rich, 17, crashed his mountain bike and was rushed into emergency surgery at University Hospital Coventry to repair an open fracture of his skull. Can surgeons do enough to ensure no lasting brain injury? Darren, 55, crashed into a ditch while cycling and is suffering a bleed on the brain. His slow recovery leaves his wife and the neurological team fearing potential long-term injuries.

Steven is left with life-changing injuries as emergency medical staff fight to stabilise him. Pauline has to be cut out of her car and airlifted to hospital after a collision.