While Rebecca gets closer to discovering Brian's secret, Brian goes rogue from the FBI and goes to Russia to find the only person who can help him cut all ties from Senat ...

When Rebecca finally confronts Brian about not answering his phone, she is interrupted by a city power blackout. Investigating the premises of a power plant exposes them ...

A remarkable assassination attempt on Sen. Morra sends Sands to summon the FBI directly, but his primary mission is to alert Brian of the need to keep the investigation f ...

When Boyle's former military buddy is accused of murder and blames it on the loss of control of his prosthetic arm, Boyle asks Brian to help determine if the artificial l ...

In pestering Naz for his own personal Headquarters, Brian offers to capture the FBI's 10 Most Wanted criminals as a bargaining chip. ...

An elderly scientist Brian befriended on-line appears at the bureau asking for his help. His woes soon worsen when evidence points to him murdering a former colleague who ...

Brian hoped to become a dashing field agent, but Rebecca's superior mistrusts him and assigns him a desk job as analyst. Brian is relieved when suggested he can confide i ...

After a mysterious drug called NZT gives him the ability to use 100% of his brain, Brian Finch uses it to help his sick father, but he also finds himself a suspect in the ...

When picking up some papers at Doug's, Mark finds out Doug and Harper had sex that night. Mark gets angry with Doug about this since it could get both of them fired. Harp ...

In the aftermath of the destruction of APO and death of Tom Grace, Sydney and Vaughn and the surviving members of APO try to stop Sloane from fulfilling the Rimbaldi endg ...

Having finally learned the identities of all the 12 leaders of Prophet Five, Sydney, Jack, Tom, Dixon, and the rest of APO debate their next move when both Marshall and R ...

After killing the Sydney double/Anna, the real Sydney decides to impersonate her to infiltrate Prophet Five to know about their intentions, which leads her to have a reun ...

In the aftermath of both Renee's and Nadia's murder, a vengeful Sydney becomes determined to find Sloan whom has abandoned his morals and joined Prophet Five in their sea ...

While Sydney and the rest of APO try to learn more about Prophet Five and what their plans for Sydney are, Sloane finally acquires a bottle of serum from Prophet Five as ...

One month later, with Sydney on maternity leave, she gets forced back into the field when her old enemy, Anna Espinosa, returns after she's secretly sprung from prison by ...

Now nine months pregnant and on maternity leave, Sydney is surprised when her mother, Irina Derevko, shows up at her front door pretending to be a victim pursued by Proph ...

After escaping from Peyton and her henchmen, and learning she's on a freighter at sea, Sydney goes to the communications room and sends a message to APO routed through th ...

When Kelly Peyton steals some software from a CIA warehouse concerning the late Michael Vaughn, Sydney is soon abducted by Prophet Five agents where she is subjected to a ...

An incident concerning a microwave bomb brings APO to send Rachel in Sao Paolo in order to take information about this weapon. However, another person who is named Bob is ...

Sloane decides to betray Dean when he learns that Nadia's condition will probably not improve. They meet at a race track in Dubai to exchange a network access card which ...

After Sydney and the APO team infiltrates a formal party at the Chinese embassy in India to locate a fugitive arms dealer, named Janos Vak, Rachel is chosen to begin very ...

Sydney and Tom travel to Marseilles, France when they discover that Renée has stolen the cryo container which contains the cryogenically frozen body of her supposedly de ...

While Sloane awaits the outcome of his sentencing for treason, a mysterious associate of Gordon Dean approaches him for a favor in exchange for persuading the judges to r ...

Following the theft of a deadly virus, code named Substance 33, in Turkey, Sydney is forced to partner on a mission with new APO agent Thomas Grace where they and Marshal ...

Four months after Vaughn's murder by the traitorous Gordon Dean and his associate Ivan Curtis, a grief-stricken Sydney teams up with Renée Rienne, a French freelance ass ...

After learning that the man she has known as Michael Vaughn is under investigation and suspected of being a double agent for another secret terrorist group called Prophet ...

Jack, Sydney, Irina, Vaughn and Nadia parachute into Sovogda, Russa to dismantle the giant floating red ball of the Circumfrence which is turning people into mindless, re ...

Rambaldi's catastrophic endgame begins to fall into place as a giant red ball version of the Circumference/Mueller device is found floating over a large city in Russia, d ...

After a tactical group infiltrates the DSR and steals all the Rambaldi artifacts, CIA director Hayden Chase discovers that the alarms at the DSR were disabled from Nadia' ...

Sydney and the rest of the team finally capture the Sloane impostor and bring him to APO where they question him to find a rare Rambaldi orchid whose pollen has some mira ...

Jack's illness has caused him to hallucinate about a cure among other things. As a result, Sydney must recreate the time when Jack was working for the CIA and hid the onl ...

Nadia's former caretaker, Sophia, has been severely beaten. She contacts Nadia and asks to meet her. Sloane is told by Sophia that she was beaten up, because someone is t ...