50/50 Heroes

50/50 Heroes is a French animated children's television series produced and distributed by Cyber Group Studios.

The series follows Mo and Sam, half-brother and sister, aged 11 and 9. One day, these siblings find out that their great-great-great-grandma once dated a superhero, although it’s not very clear who he was. They both had a kid together, creating a potential hereditary “superhero streak” in Mo and Sam’s family. Up until now, almost everyone in the family thought it was all just one big joke.

Opening Intro
A short clip of Sam muscle inflation in the opening sequence.