When does Invincible return?

Steven Yeun stars in the series as Mark Grayson / Invincible alongside Sandra Oh and J. K. Simmons as Mark's mother and father, respectively, while the remaining cast members have recurring roles. The series has received acclaim from critics for its animation, action sequences, story, voice performances (particularly Yeun and Simmons), and emotional weight.
Mark Grayson is a seemingly normal teenager whose father Nolan is the most powerful superhero on the planet. Shortly after his seventeenth birthday, Mark begins to develop powers of his own and learns how to wield them with help from his father.