– The season opens with Barry Allen’s tragic loss, his forensic work at CCPD, and the accident that grants him super‑speed. The “Crisis” episode (1.01) establishes the core premise: the particle accelerator explosion created “metahumans” and set Barry on a path toward heroism. This arc is largely episodic, focusing on Barry’s adjustment to his powers and his early forays into crime‑fighting.
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