Wally Darling, the last puppet in the WonderColor Science facility where students can learn about science, but it didn't continued due to the accident that caused an massive explosion in the whole facility and caused a huge injury on the workers and learners, this caused to be abandoned to left and rotten of its forgotten existence. But not for Wally, he doesn't want to leave his faculty. Wally stayed instead his facility and keep it in motivation despite how rusty and dusty inside is.