PooDunnit is the seventh episode of the series, Nicky, Ricky, Dicky & Dawn. It premiered on November 8, 2014 to an audience of 1.66 million viewers.
A water-park trip is canceled by the parents because of someone's lapse in bathroom etiquette, so the kids try to figure out who the culprit is.
The Harper Quads are excited to go to a waterpark but then their parents find out that one of them used the toilet and forgot to flush. So, Anne and Tom forbid the kids from going to the waterpark until one of them admits to doing it. The quads start fighting among themselves forcing each other to admit to the crime.
At first, the quads blame each other by bringing up evidence to support their suspicions. At the end, they still don't know who did it. On realizing that time is running out, the quads realize that the only way to get to the waterparks is to confess even if they're not the ones who did it. Each one of them starts telling stories about why they think they're the ones to blame. But still a lot of things don't add up.
Out of ideas, the Harpers are shocked to see Squishy Paws go to the toilet. They realize that it was Squishy Paws all along.
- Lizzy Greene as Dawn Harper
- Casey Simpson as Ricky Harper
- Mace Coronel as Dicky Harper
- Aidan Gallagher as Nicky Harper
- Allison Munn as Anne Harper
- Brian Stepanek as Tom Harper
- This is the first episode where Nicky, Ricky, Dicky, and Dawn want to go to a water park. The second was in Quadshank Redemption.
- This is part of the Whodunit night.
- The title is a reference to "Whodunit" which is a common phrase used in detective stories.
- In this episode Nicky is carrying a floati which reveals he can't swim.