One night, Helen and Martha are watching a horror movie that they find too scary to watch without covering their eyes, but too good not to watch. Helen wakes up in the middle of the night after bedtime, convinced that the blue goo featured in the movie is under her bed. Martha goes to check, but Helen, fearing for Martha's life, decides to check herself, and she's convinced she feels it. Martha is still convinced the goo is not real and tells her a story about the both of them to prove it.
The story begins with Mariella going home from a late shopping trip and being shocked to find her vase broken and surrounded by the rest of the family (except Jake) and Truman. She asks how it broke, but the other Lorraines and Truman claim that they don't know, since none of them were in the room when it broke. They claim to have heard the crash, the lights turned out, and when they turned back on, it was broken. Mariella decides that they must solve the mystery, and until it's solved, no one may touch the broken vase. She then tells everyone to tell what they think happened, starting with Danny.
He claims that he was making a peanut butter sandwich, when he heard a trumpet. Believing he'd left the radio on upstairs by mistake, he went to turn it off, but then he heard a crash in the kitchen, and the lights went out the next second. He tried to run to see what happened, but bumped into a wall, yet when the lights came back on, there was no wall. When he went into the kitchen, the vase was broken and the peanut butter had been eaten.
Then, Helen tells her story: she and Truman were playing catch in the living room, when the ball flew over his head. Then, there was a crash and the lights turned out, and in the dark, someone brushed past Helen carrying a large banana leaf. Mariella is confused by this, so Helen admits that she only guessed it was a banana leaf based on how it felt. Mariella decides that the ball must have been what knocked over the vase, but Truman denies it and tells his version of what happened:
After the ball flew over his head, he followed it into the kitchen and saw that the dogs were eating the peanut butter. When they saw the ball, they thought Helen wanted to play with them and Skits ran off with it, with Martha running after. Truman ran after the dogs into the hallway, and that's when he heard the crash, then the lights turned out, and someone came out of the kitchen in the dark, carrying a palm tree.
Mariella, confused by Truman's tree claim, asks the dogs what they were doing, and Martha tells her story: she and Skits walked into the kitchen and smelled the peanut butter. However, despite Danny's claim that the jar was brand new, she claims that it was nearly empty when they approached it. They started licking the jar, then decided to play when the ball came in. After they ran into the hallway, the crash happened and the lights went out, then something came past with a rope hanging from the back of it. She pulled on the rope, but it got away.
Mariella goes through everyone's stories, and everyone insists that they're true, but she's still nowhere close to the truth. She doesn't want to give up on solving the mystery, but allows Danny to clean up the mess. Meanwhile, the dogs go to sit on the couch. They follow a peanut butter smell to Mariella's closet, out of which Jeffy falls.
Jeffy admits to having eaten the peanut butter, and he knows who broke the vase but isn't allowed to tell, since the zoo animals keep their ability to escape a secret from humans. Martha convinces him to tell by pointing out that she and Skits are dogs, so he tells his version of the events:
He went for a walk, then smelled the peanut butter, so he went to the Lorraine house. He was the one who trumpeted, which Danny heard, then he tried to reach the peanut butter. When Jeffy failed, he greased himself up with vegetable oil, went in through the door, and ate the peanut butter. When he heard the dogs, then Truman, enter the kitchen, he hid under the table. Then, when he stood up, he took the table with him, and it was he who broke the vase (it fell off when he stood up). He then turned off the lights, Danny bumped into him, Helen touched his ear (mistaking it for a banana leaf), Truman touched his trunk (mistaking it for a tree), and Martha grabbed his tail (mistaking it for a rope).
In reality, Martha concludes her story by saying that you shouldn't think you know what you touched if you didn't see it. Helen looks to see what the substance was she touched, and it turns out to have been peanut butter that Martha stole. It's then revealed that she based her story after stealing peanut butter and breaking a vase due to a "bad day".
This episode provides examples of
- An Aesop: In-Universe, Martha's story has a moral: don't jump to conclusions based on what you touched but didn't see.
- Arbitrary Skepticism: Martha can talk, and she knows that Big Minnie exists, yet she dismisses the idea of interdimensional goo.
- Daydream Believer: Helen wonders if the goo from the movie she and Martha watched is real.
- Flashback: When everyone tells Mariella what happened, then when Jeffy tells Martha and Skits what happened, we see it happening.
- "I Can't Look!" Gesture: Helen and Martha cover their eyes when watching a horror movie.
- Kids Shouldn't Watch Horror Films: After watching a horror movie about blue goo from another dimension, Helen wakes up in the night fearful that the goo is under her bed.
- Last-Second Joke Problem: Martha succeeds in convincing Helen not to be afraid with her story, but then it's revealed that she was inspired to write it after actually breaking a vase and stealing peanut butter.
- Loophole Abuse: Jeffy says he can't tell Martha and Skits who broke the vase, because people can't know that the zoo animals can leave whenever they want. Martha points out that she and Skits are dogs, not people.
- Mystery Episode: The episode takes place within a story Martha tells, which is about the non-Jake Lorraines, their dogs, and Truman trying to determine how Mariella's vase broke.
- Priceless Ming Vase: The story Martha tells centres on Mariella's vase breaking, and then it turns out that she was inspired to write it after breaking a vase in reality.
- Pun: After the story, Martha says that she, Danny, Truman, and Helen didn't notice "the elephant in the room".
- Stock Animal Diet: Discussed when Truman sees a mostly-empty peanut butter jar next to the vase and wonders if this means it was an elephant who broke it, since they like peanuts. As it turns out, he did eat the peanut butter.
- Visible Odor: When Jeffy smells the peanut butter, the smell is represented by steam.
- Voodoo Shark: Truman thinks of an answer to how the vase broke and why there's a peanut butter jar nearby (an elephant broke it), but the Lorraines doubt this (since it raises the question of how the elephant got in and remained unnoticed). Despite this being a voodoo shark, however, it turns out that it was an elephant who did it.
