New Wallace and Gromit npower ad - watch it here

LONDON - Wallace and Gromit will be back on the small screen later this week in a new energy efficiency ad from npower.

In the latest 30-second ad, by Beattie McGuinness Bungay, the famous pair suffer another calamitous mishap when Wallace concocts a scheme to fill his loft with sheep for better insulation. 

As poor Gromit shuts the loft hatch, the ceiling begins to crack and the entire flock, along with plaster and rubble, come tumbling down.

Luckily, npower Bob appears to tell them there is an easier way to save money – and sheep.