Oggy is fixing himself up a veggie drink. But every time his back is turned, the roaches put weird junk into the blender. Oggy drinks the mixture in one gulp. And the potion has an immediate, but unexpected result: Oggy becomes…INVISIBLE!Official Synopsis, 
Now You See Me, Now You Don't is the 32nd episode of Season 4.
The episode starts with Oggy making a drink. The cockroaches added some disgusting mixtures in the blender. Sweat from a sock, garlic, and vinegar, maybe. Oggy turns on the blender with the mixtures mixed. Oggy drinks the mixture in one gulp. And the potion has immediate taste, but in an unexpected result: Oggy becomes...INVISIBLE! He starts crying. Panicking, he rushes to Olivia's house. Oggy rings the doorbell and Olivia opens the door. Olivia saw nothing but Oggy goes inside and Olivia goes back to her sofa. Oggy watches somewhere else and he noticed her lipstick. Olivia saw the lipstick floating, but when Oggy draw his outline, Olivia knew that Oggy was invisible and she was understanding what happened to him. She sews an "Oggy costume", exactly identical to the real Oggy! But when he hits home, Oggy realizes that there are distinct advantages to being invinsible. Most notably, when it comes to chasing roaches and getting back at Bob the neighbor. Back at the cockroaches' home, they are making another mixture. Only this time, it turned the body in a crisscross pattern. Episode ends.
- This is the 1st episode where Oggy cries like a baby.
- ↑ Oggy and the Cockroaches - Now you see me, now you don’t! (S04E33) Full Episode in HD (published by OGGY on Jan 27, 2015, on YouTube. Accessed December 9, 2018.)