Enervo — [s4e20]

It successfully introduces the cast of the spin-off (including Britt Robertson and Kevin Zegers ) and gives Simone Clark a strong "hero moment" that justifies her transition to the FBI.

For a deeper look at fan reactions and detailed scoring, you can check these sources: [S4E20] Enervo

Browse critic and audience reviews for The Rookie Season 4 to see the overall season consensus. It successfully introduces the cast of the spin-off