Idea: the government made clones of every Super Science Friend, not just Einstein. Actually, they all came out at different times, but they were all released at 12 years old. They were meant to stay at the facility until they were grown up and the A-squad had all been defeated/passed away, but Churchill came early, saying that something had gone wrong and he needed the Einstein clone now.

Later, the squad still at the facility overheard that they should scrap everyone else and start anew since the plan was out the window. The remaining five escape out the window and somehow end up at a well-funded but neglectful orphanage/foster home in 2020-2023. They-oh, what the heck, WE-have the knowledge of their older counterparts, but must also gain the street smarts to:

a. Convince the social workers/police that we are here legally and the adults take care of us well, are you sure you don't have our paperwork?

b. Survive public school and balance work on the side

c. Take care of the other kids here

d. Not getting COVID-19

d. Oh, and we have to fight time-traveling villains. Did we mention that?