I gotta see the 2nd episode again...
In the second episode Hiro rushes through the streets of New York, happily greeting people because he successfully teleported himself. He finds a comic book called 9th Wonders! that shows him standing in Times Square with his hands up and yelling, "I did it!" (this time, transcribed into English), which happened just moments earlier. After buying the comic book with Japanese currency, he discovers that its writer and artist is Isaac Mendez.
Hiro goes looking for Isaac at the address listed on the comic book, and finding the apartment door open. He steps in and looks around calling out Isaac's name. Glancing at a table in the room, he notices a comic book page on Isaac's drawing table, depicting future events. Looking up, he sees a trail of blood and becomes nervous. The blood leads to a gun, which he picks up to defend himself if someone was still in the house. A few steps later, he sees the corpse of Isaac on the floor with the top of his head sawed off and the brain nowhere in sight.
A police squad arrives and arrests him. As he is being questioned at the murder scene, Hiro discovers he not only teleported himself to New York, but he also sent himself forward in time five weeks, from October 2 to November 8. He witnesses the giant explosion that Isaac had predicted in a painting, but before the blast hits him, Hiro teleports himself back to the train in Tokyo, back in the 'present' time frame.