After performing a few minor, undercover super-feats to help the children in Midvale Orphanage, Supergirl notices a Kryptonite meteorite in the woods, near some park rangers. The rangers signal Superman to retreat into the Fortress of Solitude until the Kryptonite can be disposed of. This prompts Kara to begin thinking over everything she knows about the nature of Kryptonite and its effects on Kryptonians, as well as the nature of Kryptonian powers (which are the result of both the influence of Earth's weaker gravity and exposure to Earth's yellow sun.
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