Invincible, Vol. 2: Eight Is Enough2004

Mark Grayson is the son of Omni-Man, a being from the planet Viltrum who has chosen to be Earth's defender. Now, Mark has come of age and his life is changing in a big way. He's developing superpowers like his dad and soon becomes a member of the Teen Team as Invincible, fighting bad guys by night and going to school by day.