With his father out of action, Mark struggles to defend the city against an interdimensional invasion, joining forces with a team of teenage superheroes.

Mark has to cut a study date short to help save Mount Rushmore from a crazed scientist. Robot deals with Action - Comic as he assembles a new team of world-saving superheroes.

It's two firsts for Mark: a first date and a first trip to another planet. At the same time, Nolan and Debbie revisit their own first vacation together.

Feeling confident in his new abilities, Mark risks a team-up with a local villain to take down a crime lord, while simultaneously juggling school and a new relationship.

Mark joins William and Amber on a campus visit to Upstate University, hoping to discover a new future for himself. Debbie makes her own disturbing discovery.

Feeling lost and confused, Mark looks for advice from Eve. At the same time, everyone's looking for him.

It's summer break for Mark and his friends, but supervillains don't take a vacation. Mark is forced to face the consequences of Omni-Man's double life.

The Grayson household is upended when Mark returns to Earth with surprising new responsibilities. The Guardians of the Globe face dangers both at home and away.

Mark Grayson is back and stronger than ever – with new enemies out for blood and old villains out for revenge.

Mark takes a stand, unaware of the ramifications for his family, the GDA, and even the Guardians. Cecil remembers his past and Eve makes an important decision.

Two strangers ask Mark for help with a mysterious villain. Elsewhere in the galaxy, Nolan grapples with his identity and Allen finds a surprising new ally.

A powerful new figure challenges Mark's idea of what's right and what's wrong. Rae approaches Rex with a big life decision.

Earth's greatest heroes join forces to fight an unimaginable threat.

With the world still reeling, a dangerous stranger arrives - testing Mark to his limits and beyond.