The beginning is on the bass, which is something like;
G-----------------------------------------)
D--------2--------------3---------------4-)
A-----------------------------------------)
E-----------------------------------------)

Then, with a decent amount of treble on the amp, intro the Lead Guitar;

E---------------14--12-12----------------)
B-12-12--15-15--15--12-12----------------)
G-12-12--14-14---------------------------)
D----------------------------------------)
A----------------------------------------)
E----------------------------------------)       and repeat x2

E---------------17----15-------------------------)
B-12-12--15-15-----15----15----------------------)
G-14-14--14-14-----------------------------------)
D------------------------------------------------)
A------------------------------------------------)
E----------------------------------------)-------)      on the third repeat

And repeat the Lead Guitar bit over and over .