The chaos forces each rookie and training officer (TO) into life-altering situations:
: Tim and Lucy track the missing backpack to a residence. Realizing the owner is infected, Tim locks himself in a room with "Patient Zero" to protect Lucy and prevent further spread. After being exposed to the victim’s blood and receiving an experimental vaccine, Tim collapses as he exits the house.
: As the LAPD, CDC, and DHS scramble, it is revealed that a passenger accidentally swapped backpacks with a terrorist, taking the active bio-weapon home. Character Breaking Points
In the high-stakes Season 1 finale of The Rookie , titled "" (April 2019), the officers of the Mid-Wilshire precinct face a catastrophic threat that halts their final probationary exams. The Bio-Weapon Threat
: Officers John Nolan and Talia Bishop discover a body in a bus station restroom, unknowingly stumbling upon a dead terrorist who had been exposed to the virus.
: Jackson, struggling with his confidence after a fallout with his father, finds redemption while apprehending a second terrorist on a crowded bus.
