While Mina is away for the weekend, Bunnicula turns invisible after eating dry a very rotten yam.
Mina and Arthur are going away for the weekend, so Marsha has to petsit Bunnicula, Chester, and Harold. Bunnicula gets a serious case of Seperation Anxiety and bursts into tears. Harold and Chester try to comfort him only to start crying too,Upon seeing thus Marsha decides to feed them to cheer them up. While it works for Chester and Harold , Bunncula is still sad and starts drawing multiple carrots in the fridge. Unfortunately There a Rotten yam amongst the carrots an Bunncula grabs Thinking its another carrot and drains it which turns him invisible without realizing it.
The next night Bunnicula comes out of his tomb (Still not realizing he's invisible) and goes into the upstairs. In the living room, Marsha, Harold, and Chester are watching a movie, when the invisible Bunnicula arrives for comfort. Unfortunately, they think he's a ghost and start running away from him, making Bunnicula even more depressed.
Eventually, Chester finds The yam with bite marks and Bunncula tracks in flour (Which Marsha accidentally spilled when running away) and puts 2 and 2 togethr and realizing the "ghost" was Bunnicula being invisible and decide to have him eat more carrots so the effects will wear off. But before that can happen, Bunnicula ends up being hounded by the petrified Marsha. Just then, the Monroes arrive, just in time for a Bunnicula to become visible. Bunnicula, Chester, and Harold share a touching reunion with their owner, while Marsha tries to tell them about the "ghost".
- This episode was released on Boomerang Streaming Service on December 21, 2017.
- This episode was aired on Boomerang Channel on November 15, 2017.
- Starting with this episode, the show always ends with a pun on a postcard, regarding the theme of the episode and the credits are shorter.
- Postcard Pun: "I Really Yam Gonna Miss You!"