On Family Guy Season 18 Episode 15 – “Baby Stewie”, Stewie builds a machine that will allow him to remain smart forever, but it transforms him into what he should have always been an actual baby. You can watch the full episode below.
About the show:
Sick, twisted and politically incorrect, the animated series features the adventures of the Griffin family. Endearingly ignorant Peter and stay-at-home wife Lois reside in Quahog, R.I., and have three kids. Meg, the eldest child, is a social outcast, and teenage Chris is awkward and clueless when it comes to the opposite sex.
The youngest, Stewie, is a genius baby bent on killing his mother and destroying the world. The talking dog, Brian, keeps Stewie in check while sipping martinis and sorting through his own life issues.