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"What I Know" is the eight episode and season finale of the second season and sixteenth episode overall of the American superhero television series The Boys, based on the comic book series of the same name by Garth Ennis. It is set in a universe where most of the superpowered individuals are portrayed as corrupt individuals instead of being the heroes that the general public believe they are. The episode was written by Rebecca Sonnenshine and directed by Alex Graves.
The episode follows the Boys preparing for their fight against Vought after the plans for a hearing went wrong, where they finally uncover Stormfront past as a Nazi. When they are approached by Billy Butcher's wife Becca after her son was taken by Homelander, the Boys agree to aid her in the rescue despite being the son of the latter. Meanwhile, Homelander attempts to connect with his son in the hopes of finally having a family though Ryan is uncomfortable with him.