Read the comic here.
Just to clarify, yes, that's Neo from the Matrix movies. For those of you who haven't seen the films, one of the major plot points involves the characters entering other realities via phone lines. (I tried to make that clear in the strip, but I've seen some confused looks among you.)
Another big deal in the Matrix movies is that all the characters learn various martial arts skills to fight their opponents. One of Neo's most memorable lines (there aren't that many) is "I know Kung-fu!"
That should be enough movie trivia to help the non-Matrix fans through today's strip.
Tomorrow: More pop-culture help.