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The episode ends with the reveal that the team needs a power source stronger than the sun to fuel the Speed Force Bazooka—specifically, a Dominator crystal guarded by King Shark .

The episode shows brief glimpses of Caitlin Snow fighting to regain control from her Killer Frost persona, particularly after a heartfelt moment with Cisco. The_Flash_2014_3x21_Causa_Ed_Effetto_ITA_1080p_...

(originally titled "Cause and Effect") is the 21st episode of the third season of The Flash (2014). It is known for its tonal shift from the season's darker themes to a more lighthearted "amnesia plot". Plot Overview The episode ends with the reveal that the