Episode 1/23 – "The Enemy Walks In"
Sydney recounts her most recent mission to a CIA psychiatrist: Tied to a chair somewhere in
Taipei, Khasinau introduces her to "The Man" — who is actually her mother, Irina Derevko.
Saying that she should have killed Sydney when she was born, Irina shoots her in the shoulder to
make a point, then exits. Sydney, however, escapes by smashing the chair against a water valve.
Episode 1/24 – "Trust Me"
Under the charge of Asst. Director Kendall, Irina is led in shackles to a cell in a secret Operations
Facility in LA. Jack conveys his doubts about her sincerity to Sydney, who herself wishes that her
mother dies for all she's done. Sydney also tells Vaughn that she's convinced Sloane killed Emily.
Episode 1/25 – "Cipher"
Sydney must outwit Sark in order to find a crucial piece of intel. Meanwhile,
Jack faces Sydney's mother for the first time in almost 20 years. Will finally
meets Vaughn and Sloane is haunted by his wife's death.
Episode 1/26 – "Dead Drop "
Sydney's dealings with her mother lead Jack to take drastic measures to ensure
his daughter's safety. Meanwhile Will is confronted by a mysterious woman about
resurrecting his story on SD-6.
Episode 1/27 – "The Indicator "
Sydney discovers a terrifying secret when she's sent on a case to track down a
new generation of weapons. Meanwhile, Vaughn suspects Jack of setting up
Sydney's mother to take a fall. Sloane tells Jack the truth about Emily's death.
Episode 1/28 – "Salvation"
Sydney's trust in her father begins to fade. Meanwhile, Sydney and Vaughn may
have been exposed to a deadly virus while in Taipei; Sloane haunted by Emily's
death begins to unravel. Vaughn enlists Will to help research a case.
Episode 1/29 – "The Counteragent "
Sydney races to find a cure for Vaughn, but in order to find the antidote,
Sydney must make a deal with Sark that could endanger Sloane's life. Meanwhile,
Will continues his research for Vaughn and discovers some disturbing
inconsistencies involving 20-year-old standardized IQ tests.
Episode 1/30 – "Passage (1)"
Sydney, Jack and Irina must put aside their differences and go undercover as a
loving family in order to seize six nuclear warheads from an unfriendly nation.
Meanwhile, Sloane announces to a suspicious staff that Mr. Sark will be working
with SD-6, and later he is contacted by an unknown group claiming that Emily is
still alive.
Episode 1/31 – "Passage (2)"
While continuing on a mission to take control of six nuclear warheads, Sydney
and Jack discover where Irina's loyalties lie when she meets up with Gerard
Cuvee. Meanwhile, Sloane informs the Alliance that Emily may still be alive.
Episode 1/32 – "The Abduction"
Jack meets Alliance counterintelligence head Ariana Kane, who is sent in to
investigate Emily's disappearance and to discover who is trying to blackmail
Sloane. Meanwhile, Marshall is sent on his first mission with Sydney as his
partner. Vaughn schedules Will to take a CIA psych test. Francie gets suspicious
over Sydney and Will's secretive behavior.
Episode 1/33 – "A Higher Echelon"
After completing his first mission with Sydney, Marshall's life is placed in
mortal danger. Meanwhile, Ariana Kane suspects Jack as being the prime suspect
in the disappearance of Sloane's wife. Vaughn learns the truth about Jack's
involvement in the murder of CIA agent Haladki and Sydney confides in Francie
about her feelings for a fellow co-worker.
Episode 1/34 – "The Getaway"
While Alliance counterintelligence head Ariana Kane tracks Sydney in order to
catch her fugitive father, Jack elicits Irina's help in finding Sloane's
blackmailer. Meanwhile, Sydney and Vaughn risk exposing their covers to SD-6
when they share a romantic dinner together while on a case in France.
Episode 1/35 – "Phase One"
Sydney and Jack are confronted by the new director of SD-6 who replaces Sloane,
whose whereabouts and intentions are unknown. Meanwhile, romantic sparks begin
to fly between Francie and Will.
Episode 1/36 – "Double Agent"
Sydney, Vaughn and Jack must determine whether CIA agent Lennox is who he says
he is after his deep cover mission is compromised.
Episode 1/37 – "A Free Agent"
Sydney must make a life-defining decision regarding her future with the agency,
while Sloane re-emerges and continues his obsessive quest to piece together the
mysterious Rambaldi artifacts - with the reluctant aid of a kidnapped scientist.
Meanwhile, Dixon's marriage is put to the test after he tells his wife the truth
about his occupation.
Episode 1/38 – "Firebomb"
A mysterious Rambaldi device's powers are finally revealed and Sloane has its
secrets. Meanwhile, Vaughn begs Dixon to aid the CIA in rescuing Sydney, Will is
called upon to participate in a crucial CIA briefing session, and Sydney senses
that Francie is keeping secrets.
Episode 1/39 – "A Dark Turn"
Sydney begins to question where Vaughn's allegiances lie when she learns through
CIA Agent Yeager that he is under investigation by the Agency. Meanwhile Irina
and a crucial Rambaldi manuscript are used as bait to try to catch Sloane, and
Sydney welcomes Dixon to the CIA.
Episode 1/40 – "Truth Takes Time"
Sydney faces off with her mother, while Emily must decide whether to side with
her husband or betray him.
Episode 1/41– "Endgame"
Sydney defies her father in her attempt to rescue a kidnapped scientist, while
Sloane, seeking revenge, becomes more dangerous than ever. Meanwhile, Francie
manipulates an unsuspecting Will for his agency connections.
Episode 1/42 – "Countdown"
A Rambaldi artifact prophesizes that an apocalyptic event will soon take place,
and Dixon's grief leads Vaughn and agency psychologist Dr. Barnett to question
his intentions, as his thirst for revenge on Sloane intensifies. Meanwhile
Sloane receives a life-changing revelation from a mysterious monk in Nepal,
Sydney and Dixon hunt for the killer who stole the heart from his victim.
Episode 1/43 – "Second Double"
Sydney begins to question Will's identity when he's arrested for espionage,
under suspicion of being a double. Meanwhile Sark and Irina plot to recover the
Rambaldi heart, and Sloane makes Jack a business proposal.
Episode 1/44 – "The Telling"
Sydney finally confronts her mother, who reveals her true motivation. Sloane,
for his part, begins to execute his new grand plan and Will struggles to figure
out who's behind his set-up.