The Rookie: Feds S01 E17 Payback (II)

"The FBI has a new secret weapon."

Garza and the team are on the hunt for a ruthless gang leader on a mission for revenge. Atlas comes to town to reconnect with Laura, but the two cannot seem to see eye-to-eye, and Simone and Carter grapple with letting go of old grudges. The crossover starts on The Rookie S05E17 The Enemy Within (I).