Suicide Squad: The Rookie
You definitely don't have it easy in Belle Reve, especially if you're a new inmate. Meet Savanna June, AKA, Scout. Scout was sent to Belle Reve after being convicted of multiple felonies.
Once in Belle Reve, Scout meets Harley Quinn, Deadshot and many more criminals who occupy the prison.
After days of being in prison, Scout and a selection of other inmates are given an offer they can't refuse. Literally, they can't refuse or they'll die.
With this offer comes a squad, a suicide squad.