Third Watch - Season 5 - Eps 18: Purgatory
Distraught over losing an appeal to her suspension, Sasha gets into a car accident that claims the life of a young child; Sully and Ty take the L.S.A.T.; tensions flare between the cops and the firefighters when Maritza goes after J.D., the newbie firefighter, who turns out to be an ex-cop who ratted out Maritza's former partner for stealing drug money; Faith and Fred are still at odds over her return to work; Walsh is promoted to lieutenant; Ty watches over a devastated Sasha, who's racked with guilt over the car accident, Doc's shooting spree, and the events surrounding the deaths of Tanzi and Nardo; J.D. gives Faith and Bosco important evidence he discovered as he put out the fire resulting from Sasha's car accident, which leads the cops to uncovering the basis for the accident and exonerating Sasha.
About Third Watch

Title: Third Watch
First Air Date: 1999-09-23
Last Air Date: 2005-05-06
Status: Ended
Rating: 7.9/10 (from 213 votes)
Language: EN
Seasons: 7
Total Episodes: 131
Network: NBC
Genres: Drama, Crime
Production Companies: John Wells Productions, Warner Bros. Television
Synopsis
The exploits of a group of men and women who serve the City of New York as police officers, firemen, and paramedics, all working the same fictional 55th precinct during the 3pm to 11pm shift - the 'Third Watch'.
Cast

Coby Bell
Tyrone Davis Jr.

Nia Long
Sasha Monroe

Molly Price
Faith Yokas

Anthony Ruivivar
Carlos Nieto

Skipp Sudduth
John Sullivan

Tia Texada
Maritza Cruz

Jason Wiles
Maurice Boscorelli

Cara Buono
Grace Foster

Josh Stewart
Brendan Finney