Action/Reaction is a main story mission in , given by Billy Grey.
It's the 4° TLaD mission in chronological order, and it takes place in Alderney.
Billy and the Lost MC attack the Angels of Death's clubhouse and steal $2 million worth of heroin.
- This mission introduces the Grenade Launcher.
Action/Reaction: Mission Objectives
- Follow Billy.
- Race the Lost crew to the A.O.D. clubhouse.
- Take down the Angels of Death defending their clubhouse.
- Go with Billy.
- Get on your bike and leave the area.
- Get clear of the A.O.D. clubhouse.
Action/Reaction: Mission Info
- Mission Number 4
- Mission Giver
Billy Grey - Location Lost MC Clubhouse, Acter, Alderney
- State / Area Alderney
- Available After Mission (Story Mode)
It's War (The Lost and Damned)
- Rewards 1000$
- Unlocked Items
Grenade Launcher 
Buyer's Market - Featuring
Daemon 
Gang Burrito 
Hexer Grenade Launcher 
Angus Martin 
Brian Jeremy 
Clay Simons 
Jim Fitzgerald 
Ray Boccino 
Terry Thorpe 
Angels of Death MC 
Pegorino Crime Family 
The Lost MC