When the younger machines accidentally knock a load of oil drums into the dock they are too scared to own up to their mistake.

Diggs pleads with Bozer to let him wear some new, really fashionable treads.

Carl has to knock a chimney down on the site today, giving him a chance to show why he is nominated for Crane Of The Year.

While Bozer is off-site, Diggs, only half-listening to Maxine, thinks she has told him it’s OK to do a job on his own.

Scooch would like a bit more space in the idle house but Diggs and Carrie aren’t giving an inch.

When Diggs starts treating everyday jobs on the construction site as a competition, Bozer decides to introduce a real contest – the Machine Challenge!

When Diggs saves Carl from a nasty accident, the older machines decide it’s time he started hanging out with them.

The new machines have a lot of bricks to move, so many in fact that Diggs thinks they could use a little help from Maxine.

It’s time for the CCT (Construction Certificate Test) and all the machines are very excited. Well, everyone except Carrie.

The trucks are working in the snowy mountains where safety is the number one priority and safety gear is de rigour.

When a daredevil dump truck comes to town, Scooch is thrilled to find out that Lug used to be one himself.

Diggs plays a prank on Scooch, encouraging him to pursue the mysterious "call of the forest."

Due to a wall of ice that Carl can’t even shift, the machines are stuck on a slippery mountain road.

Bozer has gone off site and left Carl in charge - something that always ends in total chaos!

Carrie doesn’t understand how to work her flashy new re-charger.

Bozer returns from a servicing only to find that his big deep boomy boss voice has changed to something very high and squeaky!

The young machines procrastinate on a job, and pay the price when a thick fog rolls in.

Carl’s inventions are legendary…for being a disaster.

The machines are shocked to find that during the night the new multi storey car park they were building has been destroyed.

A site scattered with piles of materials inspires Diggs to suggest an obstacle race.

Diggs frightens Carrie and Scooch with made up tales of the monster ‘Truckzilla.’

It’s Maxine’s ‘mileage day’ and the machines organize a Carnival Party to celebrate!

Diggs and Scooch are working on some foundations and are tired and fed up.

Diggs discovers Bozer is scared of water, much to Bozer’s embarrassment.