S5E4
White Heat
⚠ Spoiler alert This recap gives away what happens in this episode.
Episode Summary & Review
Aired 2007-10-13 on The WB / Kids’ WB.
Perpetual loser Firefly tries to upgrade his powers with the aid of his new girlfriend Blaze, but is exposed to radioactive phosphorous and takes on a new more dangerous identity as… Phosphorus.