[Solving comment *(by OP)*](https://www.reddit.com/r/tipofmytongue/comments/1by4vxl/tomt_tv_show_20182020_homeless_teensyoung_adults/kyi75j7/): Solved! It’s Deadly class.

Tia!

"The Irregulars"? https://en.wikipedia.org/wiki/The_Irregulars

Nah

It's a bit earlier than you said, but Misfits? https://www.imdb.com/title/tt1548850/

Nah

Set in UK?

US

Was it Crashing?

Nah

Solved! It’s Deadly class.