WARNING: The following contains spoilers for Daredevil #4 by Chip Zdarsky, Marco Checchetto, Sunny Gho, VC's Clayton Cowles and Julian Totino Tedesco, on sale now.
Since first appearing in 1974's Amazing Spider-Man #129, Frank Castle/the Punisher's brutal methodology has made him a lot of enemies, both heroic and villainous. But out of all those Marvel characters, his most compelling frenemy is probably Matt Murdock/Daredevil.
Despite sharing a number of qualities, Castle and Murdock differ on one key point: The latter believes in the justice system and peoples' ability to change; the former doesn't. This ends up influencing how they deal with criminals, as Daredevil doesn't kill, but Punisher does. Over the years, that massive difference in their methodology has been a sore spot for the two men, who have often tried to convert each other to their own way. The two have even teamed up on several occasions, though Murdock typically institutes strict rules regarding killing when that happens.
However, the start of Zdarsky and Checchetto's run has seen the Man Without Fear dealing with the consequences of a fatal confrontation with a liquor store robber in the first issue of the series, meaning Daredevil has now crossed a major line separating himself from Castle.
Daredevil #4 picks up with Punisher having saved Murdock from getting arrested by the NYPD and Detective North in the previous issue. Castle expresses his happiness with "the 'Freak' with the 'code' finally seeing the light," but Murdock -- who is bound to a hospital bed -- argues that he's not like his frenemy. This leads to Castle explaining the logic behind his own choice to murder criminals, using a captured member of the Owl's gang as an example.
At Murdock's behest, Castle gives the captured criminal a chance to escape. However, the criminal attempts to attack Castle. This, of course, doesn't succeed, and Castle kills the criminal instead. This leads to Daredevil breaking free from his restraints and facing off against Punisher. Daredevil manages to knock the veteran out with a little help from a rifle, some explosives and a vicious punch. After escaping Punisher's hideout, Daredevil ties Castle up and leaves him on the hood of an NYPD cruiser. In his narration, Murdock realizes that he needs to accept what he's done and ask for forgiveness while also continuing his fight against injustice.
Despite Daredevil having turned Castle over to the police, there's no real indication Punisher will stay incarcerated, if at all. The character currently has an ongoing series and he's starring in War of the Realms: Punisher. As the police left Castle on the hood of their cruiser so as to pursue Daredevil, there's a chance that he might have already escaped. Still, any encounter with the Punisher you can walk away from is a good one.
Daredevil #4 is on sale now. Daredevil #5 hits shelves May 15.