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A game of capture the flag helps the gang encourage the sad sack Forbie the Forklift find his self-worth.
The new concrete mixer at school, Concrete Pete, makes up big stories, but really just wants to be impressive.
Meteor, LT and Junkboy learn about science when Granpa sends them on a scavenger hunt.
Sinker believes the gas from a certain pump helps him go faster, but the real problem was his self confidence.