The Boys Season 4 Episode 5: Beware the Jabberwock, My Son

Butcher and MM break Stan Edgar out of federal custody in exchange for his help locating the anti-supe virus connected to Victoria Neuman. The group reaches Neuman's farm laboratory, where V-enhanced animals attack. The lab is destroyed and most of the anti-supe virus is lost. After Daphne's injection in the preceding episode, Hugh Sr. wakes with powers that let him phase through walls and he kills hospital staff and other innocents. Hughie sedates him again.

Butcher secretly keeps Sameer Shah alive after the farm attack; he and Kessler imprison him to force him to make more of the anti-supe virus. The Seven, Cate, and Sam beat VNN host Cameron Coleman to death after Ashley and A-Train frame him as the source of the leak. Frenchie turns himself in to the NYPD, saying he has committed many murders.

The episode concludes with Frenchie surrendering to the police, an act of accountability as he says he has committed many murders. Meanwhile, Butcher has secretly taken Sameer to force work on a replacement anti-supe virus. The ending leaves several threads unresolved: Hugh Sr.'s condition after sedation, whether Sameer can recreate the virus, and Butcher's concealed actions.