Darwyn resurfaces in a sleeper cell despite his attempts to start a new life; Farik withholds information despite the interrogation; terrorists in Sudan behead Darwyn's FBI associate.
The cell organizes its base and focuses on obtaining a rocket launcher; Farik sidesteps another ploy to get him to cooperate.
Ilija plans to flee to Europe; terrorists order Darwyn to procure a weapon but the FBI isn't inclined to cooperate; Farik is shipped off to Saudi Arabia.
The new cell leader excludes Darwyn during the planning of the next attack.
The FBI takes action against the cell; Darwyn is blindsided by duel tragedies.
Darwyn Al-Sayeed is a Muslim ex-con who has just been released from prison and finds his way to an Islamic extremist named Farik, who recruits him to join a terrorist sleeper cell planning an attack in Los Angeles.
Farik and Ilija receive a deadly biological anthrax shipment and prepare for an attack inside a Los Angeles shopping mall.
Farik learns that the money supply filtering in from Mexico to finance `Youmud Din Judgement Day' has come to a halt; Farik, Darwyn and Christian cross the border to Tijuana, Mexico, and attempt to straighten out their financial problems.
Farik sends biochemical student Eddy Pangetsu on a flight to Vancouver, Canada, to drive a shipment of real anthrax across the Canadian border down to Los Angeles.
The cell members pose as Iraqi insurgents in training, in order to infiltrate and take over a secure warehouse as the new base of operations for Youmud Din.
Darwyn befriends a pesticide-plant worker in order to buy some of his company's product under the table for the cell, while each of the jihadis cope with personal troubles of their own.
The cell buys explosives from a white supremacist militia, while Darwyn's new handler, Patrice Serxner, tries to prevent the LAPD from blowing his cover in another investigation.
The cell hijacks a chemical truck; Farik spends the last night with his wife; the FBI prepares to stop the attack.
When Darwyn discovers that the explosion is a decoy, he leaves a clue he hopes will lead the FBI to the true target.