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 ...

Sydney and Vaughn tell Jack about Sloane's alleged involvement in Vaughn's search for his father and Irina's contract on Sydney's life. After cornering Sloane, they both ...

On his own and desperate to find out more about his supposedly-dead father, Vaughn is pressured into a rogue operation for an unknown organization in exchange for informa ...

Vaughn and Sydney, searches for Vaughns father, and the word Nightingale. Getting help from her father, telling him that Vaughns father might still be alive. Jack Bristow ...

When a mission to Cuba goes wrong, Sydney is attacked and placed in serious danger of being buried alive in a sealed coffin. Back in Los Angeles, Dixon is exposed to a de ...

Nadia puts her own life (as well Sydney's and Weiss's) in danger after failing to unveil her past about her involvement with a dangerous criminal, named Ceasar Martinez f ...

During a mission to Austria, Sydney must protect the life of an American civilian, whom she unintentionally put in danger after she acquires information about a new mini- ...

Dixon secretly enlists Sydney to help him prove that Sloane is double-crossing the CIA and using APO to steal the Blackwell Index, a master blackmail list, and to reconst ...

While Nadia is in a coma after being shot by Anna, Sark is taken into APO to help them infiltrate the Cadmus Revolutionary Front and retrieve the stolen bomb, but in retu ...

Sloane temporarily steps down as director of his APO task force and gives Jack full authority over the next assignment, which involves Anna Espinosa, the former K-Directo ...

While Sydney and Nadia argue about Nadia's acceptance of Sloane's fatherly concerns, Sloane worries about Nadia's well-being when she and Sydney go undercover as wealthy, ...