Yesterday during a mission, Scarecrow used some kind of mist that turned Jason, Tim, and Damian as kids(Jason is 9, Tim is 6, and Damian's a baby). While also waiting for the three to turn back to normal, Bruce had to go to a Justice League meeting, leaving Dick and Alfred with the three.

It was chaotic

So Dick decided to call you and ask for your help

Jason was causing trouble, Tim was trying to make coffee for some reason, and Damian kept bugging Dick by hitting his head as Dick was waiting for you to show up while Alfred was cleaning Jason's mess