After discovering a comet hurtling towards Earth, Toby snaps and turns into the action hero in his own movie on a mission to save the world from impending doom. Flashback a year: Toby is knocked off course when somebody crashes into his life. A disaster movie about falling in love. Or a rom-com about the end of the world. Catching Comets is a new show that asks how we’re supposed to be big, brave and strong when we look and sound nothing like the heroes we grew up with on our screens.