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Season guide

Mysteries at the Museum: Season 15

17 episodes Premiered Apr 6, 2017 Updated Sep 27, 2026
Previously on Mysteries at the Museum

Season 15 Lore Primer

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

  • ⚡ Directly follows the overarching narrative developments of Mysteries at the Museum Season 14.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 15 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 15 Progress Shield

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

Season 15: Filler vs. Essential Canon

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

24%
76%
Mytharc (4): Crucial lore & season climaxes
Core (13): Character development & subplots
Side Quest (0): Standalone / filler
S15·E3 Core

Hughes Hoax, Rat Bomb and Friday Night Liars

Apr 20, 2017 · 60 min

Don Wildman investigates a twisted tell-all about the world's most elusive billionaire, an explosive rodent infestation that helped America beat the Nazis and a conman's bogus ball

S15·E6 Core

Legally Haunted, Demise of the Dodo and Jersey Kaboom

May 11, 2017 · 60 min

Don Wildman examines a house for sale that comes with three ghosts, the maligned reputation of an extinct bird and a mysterious explosion at a munitions factory during World War I.

S15·E7 Core

Sword of Scotland, Operation Haylift and Swimmin's Lib

May 18, 2017 · 60 min

Don Wildman examines the theft of an iconic Scottish sword wielded by William Wallace, an unprecedented mission to save America's livestock and a female swimmer who broke the mold.

S15·E11 Core

Presidential Pet, Dairy Disaster and Covert Catalog

Jun 15, 2017 · 60 min

Don Wildman examines a letter written by a First Lady recalling a bizarre gift sent to the White House, a chef who saved the cheese industry from crumbling after an earthquake rock

S15·E12 Core

Shark Chaser, Haunted Harmony and 1,700-Foot Wave

Jun 22, 2017 · 60 min

Don Wildman showcases a piece of top-secret military equipment developed by the first celebrity chef, a ghost that terrorized a popular music venue and a father-son duo who rode th

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