A cryptic code, a familiar song, a friend unmasked.

Sponsorship for this episode comes from Squarespace, The RealReal and Care/of.

Visit passengerlist.org to see a script and full list of credits for “7h:100c:95f,” and join the investigation. New episodes every Monday.

Passenger List was created, co-written and co-directed by John Scott Dryden; co-written and co-directed by Lauren Shippen; and edited and sound designed by Mark Henry Phillips, who also composed the music for the show. “7h:100c:95f” was written by Kevin Rodriguez and Lauren Shippen. Passenger List is a proud member of Radiotopia, from PRX.

KAITLIN LE – Kelly Marie Tran

The twin brother and his lover, how to hack a plane, a Russian connection.

Sponsorship for this episode comes from Squarespace, The RealReal and Upstart.

Visit passengerlist.org to see a script and full list of credits for “Cyberspace,” and join the investigation. New episodes every Monday.

Passenger List was created, co-written and co-directed by John Scott Dryden; co-written and co-directed by Lauren Shippen; and edited and sound designed by Mark Henry Phillips, who also composed the music for the show. “Cyberspace” was written by Mara Wilson. Passenger List is a proud member of Radiotopia, from PRX.

BRITISH POLICE DETECTIVE – Becci Gemmell

The one who got away, a suicidal war criminal, a family secret.

Sponsorship for this episode comes from Squarespace, The RealReal and HelloFresh.

Visit passengerlist.org to see a script and full list of credits for “Psychic Witch,” and join the investigation. New episodes every Monday.

Passenger List was created, co-written and co-directed by John Scott Dryden; co-written and co-directed by Lauren Shippen; and edited and sound designed by Mark Henry Phillips, who also composed the music for the show. “Psychic Witch” was written by Lauren Shippen. Passenger List is a proud member of Radiotopia, from PRX.

MIA RISAL – Patti LuPone

A sick passenger, an anxious gate attendant, the man in the green jacket.

Sponsorship for this episode comes from Squarespace, The RealReal and Upstart.

Visit passengerlist.org to see a script and full list of credits for “Kinshasa,” and join the investigation. New episodes every Monday.

Passenger List was created, co-written and co-directed by John Scott Dryden; co-written and co-directed by Lauren Shippen; and edited and sound designed by Mark Henry Phillips, who also composed the music for the show. “Kinshasa” was written by Kevin Rodriguez. Passenger List is a proud member of Radiotopia, from PRX.

WAYNE LaPEER – Nathan Osgood

A replacement co-pilot, a suspected terrorist, the official version of events.

Sponsorship for this episode comes from Squarespace, The RealReal and Away.

Visit passengerlist.org to see a script and full list of credits for “Flock of Geese,” and join the investigation. New episodes every Monday.

Passenger List was created, co-written and co-directed by John Scott Dryden; co-written and co-directed by Lauren Shippen; and edited and sound designed by Mark Henry Phillips, who also composed the music for the show. “Flock of Geese” was written by Kevin Rodriguez. Passenger List is a proud member of Radiotopia, from PRX.

HELEN McPHERSON – Tessa Auberjonois

An abandoned child, a missing plane, a new ally.

Suspicious of the official versions of events, Kaitlin Le begins her own investigation into the disappearance of Atlantic Flight 702 — and with it, her twin brother.

Visit passengerlist.org to see a script and full list of credits for “Traffic,” and join the investigation.

Sponsorship for this episode comes from Squarespace, The RealReal and Care/of.

Passenger List was created, co-written and co-directed by John Scott Dryden; co-written and co-directed by Lauren Shippen; and edited and sound designed by Mark Henry Phillips, who also composed the music for the show. “Traffic” was written by John Scott Dryden. Passenger List is a proud member of Radiotopia, from PRX.

KAITLIN LE – Kelly Marie Tran

A missing plane, a cabin full of suspects, a search for truth. A new mystery thriller from PRX’s Radiotopia, starring Kelly Marie Tran, Colin Morgan, Rob Benedict and Patti LuPone. Arriving September 16. Subscribe now.