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

Diggs and Scooch think they are helping Bozer save time by starting work on their own, but dig in the wrong place.

Nothing can stop Carrie – except a flat battery that is!

When Bozer tells Diggs that he's full of good ideas, he shares them with Scooch and Carrie. But Carrie's got a few good ideas of her own!

Carl is preoccupied because he is missing the site where he was made.

Everybody's reversing warning is clear and impressive – everyone's except Scooch that is.