Police officers are called to kill Adam Pressman, who died from the shot, Martin and Roger come to the club where everyone has headphones, they find drugs on the spot, they interrogate DJ Jessica.
Scorcese informs Sonya and Roger that the drugs that were at the party are modified by what is legal.
Riggs together with Mu come to a girl who modifies drugs, ask about Adam, who wanted to increase production.
Henry Hong joins the murder case.
Riggs comes to the chemist when he looks at pictures of suspicious men, goes to Thomas Kang - who threatened her accomplice, meanwhile, Henry and Roger meet with a hostess who says that the man they are looking for is in the bar.
Unexpectedly, Martin appears in the bar, the shooting begins, Kang escapes.
Captain explains Roger why he gave it to Martin, who is very impulsive.
Riggs comes to dinner to the Murtaugh family, where he meets Kate - a friend of Trish, unexpectedly calls for work and the women are left alone.
Martin comes to the chemist's apartment, which is demolished, finds it hidden in the floor, while Henry and Roger check the club where they find the injured DJ Jessica.
The chemist drugged Martin with drugs, he admits that she killed Adam, for her unrequited love.
The detectives start chasing Kang, who kidnapped the chemist.
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