In total, the RNLI is made up of over 35,000 individual volunteers, all working together on land and sea to save lives. In Swanage, the lifeboat crew work hand in hand with the specialist coastguard rope team to help an injured climber. In Rhyl, north Wales, a retired crew member comes to the aid of a person in the water when mechanical problems throw a spanner in the works of the lifeboat. On Douglas, in the Isle of Man, a fire on a fishing boat puts the crew on red alert. And in Gravesend, a routine training exercise is diverted by an unusual casualty: a poorly swan.