Rosalind returns with a vengeance and Bailey’s life is left hanging in the balance. With a ticking clock, the LAPD and the FBI join forces, and Officer John Nolan is forced to make a deadly decision after a harrowing ultimatum.

The crossover continues on The Rookie: Feds S01E04 To Die For (II).

With help from the FBI, Detective Lopez puts everything on the line to help Elijah Stone take down a gang leader in exchange for her safety. Meanwhile, Nolan and Bailey must deal with the secrets and shady dealings his late mother left behind.

Sgt. Grey helps the team prepare for their biggest mission yet. Meanwhile, Aaron, Lopez, Celina, Tim and Smitty discover a surprising connection in their case.

Following his stint at the LAPD, Wesley returns to the district attorney's office where his past connects him to the team's investigation. Meanwhile, Bailey and John have conflicting feelings over safety, while Lucy grows suspicious of Seth.

The team searches for a serial killer as Nyla struggles with the aftermath following the attack. Lucy’s relationship with Seth takes a turn, while Bailey battles her fear of Jason Wyler.