Fallout: Brotherhood of Steel - Plot

Plot

Immediately prior to Brotherhood of Steel, the three playable characters (Cain, Cyrus, and Nadia) have joined the Brotherhood as new Initiates. After selecting which character to play as (hereafter referred to as the Initiate), the game opens with the Initiate searching for missing Paladins in the nearby town of Carbon. Minor investigation leads the Initiate to question the Mayor of the town, who demands the destruction of a radscorpion lair before he will reveal any information. Once the radscorpions are defeated, the Mayor informs the Initiate of the direction the paladins were last known to be traveling. Unfortunately, the Mayor reveals himself shortly afterward to be a treacherous man, and attempts to murder the Initiate using explosives. However, he only succeeds in causing a rock slide and killing himself. Blocked by the rocks, the Initiate heads back to Carbon to find it being looted by raiders, who must then be defeated.

After taking care of the raiders, the Initiate leaves for the town of Los, meeting the Vault Dweller along the way. Arriving at the town, the Initiate meets Paladins from a separatist faction of the Brotherhood, and discovers a cult known as the Church of the Lost. The leader of the separatist faction, Rhombus, accompanies the Initiate on a quest to kill Blake, the leader of the cult. After infiltrating the cult's base and killing Blake, the Initiate discovers a key on the cult leader's body. In their haste to escape, however, Rhombus is mortally wounded by kamikaze ghouls and the Initiate must go on without him. Inquiring around the city, the Initiate learns of a nearby vault that may be held by the super mutant army.

The Initiate goes to the vault, but is found and easily dispatched by the mutant general Attis. Having been left for dead, the Initiate is discovered and assisted by Patty some time later. After regaining health with further assistance from other residents of the area, Patty and the Initiate search for Attis in hopes of fighting again. Deep in the recesses of the vault, Attis has mutated himself into a regenerative blob form and waits for the Initiate to find him. During the climactic battle, Patty is caught by the blob, and it begins to consume her from the inside. The Initiate, before being caught by Attis as well, is able to start a self-destruct sequence for the vault and quickly performs a mercy killing on Patty before escaping the ensuing destruction via monorail.