Fireman Sam: The Wrong Smell/The Why Files/The Treasure Trap/The Prince in Pontypandy/The Pontypandyness Monster

Helen Flood and Firefighter Penny Morris go on a mountain hike while Fireman Cridlington tries to teach Radar the Rescue Dog how to roll over. / Norman and Hannah set themselves up as The Why Files - investigators of the mysterious mysteries of Pontypandy. / When Sam is cast as the main lead in Mrs Chen's play Elvis decides to give him some tips on acting. / The prince comes to Pontypandy and everyone is making a fuss over him but he returns the favour and helps Fireman Sam and the team out. / Sarah makes up a story about a monster to get more customers on her Grandad's railway.