Doc Martin: Hazardous Exposure

SYNOPSIS

Hypochondriac Malcolm Rayner is struggling with his breathing and Martin asks him if he has ever worked with asbestos. Penhale then causes pandemonium by putting up warning notices about the substance's harmful properties throughout the village. Meanwhile, Bert pops the question to Jennifer, and Ruth finds fault with Al's business proposal. Guest starring Christopher Fairbank (Auf Wiedersehen, Pet).