Season guide
Shark Week: 2008
6 episodes
Premiered Jul 27, 2008 Updated Sep 27, 2026
Previously on Shark Week
Season 21 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 Shark Week Season 20.
- 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 21 Episodes
Episode Guide
🛡️ SPOILER SHIELD
Season 21 Progress Shield
Future titles & synopses blurred. Tap "Reveal" on any card to peek.
S21·E1
Mytharc
Mythbusters: Shark Special 2
Jul 27, 2008 · 42 min
Using their signature sci-tech style of explosive experimentation, the MythBusters hit the deep blue from California to the Bahamas to investigate myths about sharks. They are honi
S21·E4
Core
Dirty Jobs: Greenland Shark Quest
Jul 29, 2008 · 42 min
In this special episode of Dirty Jobs Mike heads to the edge of the Arctic Circle, on the northeast side of Canada's Baffin Island in search of one of the most mysterious sharks kn