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Season guide

In Plain Sight: Season 3

13 episodes Premiered Mar 31, 2010 Updated Oct 28, 2026
Previously on In Plain Sight

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Picks up essential narrative continuity directly following the events of In Plain Sight Season 2.
  • ⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • ⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • ⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
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Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

31%
69%
Mytharc (4): Crucial lore & season climaxes
Core (9): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

Father Goes West

Mar 31, 2010 · 43 min

A former high line thief from Boston tries to give up crime for the sake of his teenage son, and Mary and Marshall search for the person who nearly killed Mary.

S3·E2 Core

When Mary Met Marshall

Apr 7, 2010 · 42 min

In 2003 Mary meets Marshall for the first time as they get lovers CLAUDIA TOBIN and HENRY DOER into the WitSec program, and it's a toss-up whose relationship is going to last: Clau

S3·E3 Core

Coma Chameleon

Apr 14, 2010 · 43 min

ATF agent Wade Guthrie is shot and left for dead by gun trader Jasper Malone. After three years in a coma, he wakes to find the world he left behind has drastically changed.

S3·E4 Core

Whistle Stop

Apr 21, 2010 · 41 min

Mary and Marshall try to help FBI Agent Mike Faber convince his informant to enter WITSEC. Despite their best efforts, the informant refuses their protection and gets himself into

S3·E5 Core

Fish or Cut Betta

Apr 28, 2010 · 42 min

Mary's new witness falls in love for the first time; Mary must stop her witness from taking out his pain in the form of an explosive device.

S3·E6 Core

No Clemency for Old Men

May 5, 2010 · 42 min

Mary tries to help a parolee acclimate to life outside of prison after having spent 38 years behind bars while Marshall helps out when one of Mary's witnesses no longer wants to wo

S3·E7 Core

Love's Faber Lost

May 12, 2010 · 43 min

Mary's new witness is part of a mortgage fraud ring and is an important link in the case of FBI Agent Faber.

S3·E8 Core

Son of Mann

May 19, 2010 · 43 min

Marshall is being evaluated in the field by his father (Geoff Pierson) during a joint fugitive operation. Mary meets Brandi's secret friend.

S3·E9 Core

Death Becomes Her

Jun 2, 2010 · 43 min

A woman wants to escape from her family, who are heavily involved in organized crime, but a secret from her past puts her eligibility for the Witness Protection program in jeopardy

S3·E10 Mytharc

Her Days Are Numbered

Jun 9, 2010 · 42 min

A witness with Aspergers who has no social filter and can't lie stymies Mary, particularly when the witness refuses to testify against her only friend – the key conspirator in a nu

S3·E11 Core

The Born Identity

Jun 16, 2010 · 42 min

Mary helps her latest witness, a homeless man who's struggling with the program, find his birth parents. But the search could cause more problems than she anticipated. Elsewhere, S

S3·E12 Mytharc

WITSEC Stepmother

Jun 23, 2010 · 42 min

Mary keeps an eye on a teen witness whose separated parents are too distracted by their own issues to pay attention to their daughter. Marshall thinks a witness may have betrayed h

S3·E13 Mytharc

A Priest Walks Into a Bar

Jun 30, 2010 · 42 min

After a priest witnesses the murder of a parishioner, he will have to give up his special vocation in order to enter WITSEC.

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