The SWAT team acts as a domestic surveillance unit for the CIA to confirm whether an international crime lord has resurfaced in Los Angeles after being off-grid for years. Also, Tan's mother, Chan Fei, is a victim of racial discrimination, and Hondo encounters his ex-girlfriend Nichelle, for the first time since their breakup.

S.W.A.T. Season 4 Episodes...

• s04e01 - 3 Seventeen Year Olds
• s04e02 - Stakeout
• s04e03 - The Black Hand Man
• s04e04 - Memento Mori
• s04e05 - Fracture
• s04e06 - Hopeless Sinner
• s04e07 - Under Fire
• s04e08 - Crusade
• s04e09 - Next of Kin
• s04e10 - Buried
• s04e11 - Positive Thinking
• s04e12 - U-Turn
• s04e13 - Sins of the Fathers
• s04e14 - Reckoning
• s04e15 - Local Heroes
• s04e16 - Lockdown
• s04e17 - Whistleblower
• s04e18 - Veritas Vincint

S.W.A.T. Show Summary

Los Angeles S.W.A.T. lieutenant Daniel "Hondo" Harrelson is assigned to lead a highly skilled unit in the community where he grew up. Torn between loyalty to the streets where the cops are sometimes the enemy, and allegiance to his brothers in blue, he strategically straddles these two worlds. Hondo encourages his team to rely on communication and respect over force and aggression, but when a crisis erupts, these unflinching men and women are prepared to put their tactical training to the test.