Someone has sabotaged the wheelbarrow race at the Bluffington picnic and now no one can be in the race. So, Doug and Patti team up to solve the mystery of who did it and why.
| Creator | Jim Jinkins |
|---|---|
| Actor | Thomas McHugh, Constance Shulman, Fred Newman |
| Country | France, United States of America |
| Production | Ellipsanime Productions |
| Season 1(25 episode) |
|---|
| Season 2(26 episode) |
| Season 3(26 episode) |
| Season 4(24 episode) |
| Season 5(26 episode) |
| Season 6(8 episode) |
| Season 7(31 episode) |
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