Jennings' lab.

[Michael and Rachel have entered the inner sanctum, where the computer is which, presumably, Michael designed or reverse-engineered] Michael Jennings:
Let's take a look at the future before we destroy this thing. [Jennings looks intense, then smiles as he discovers that he innately knows how to place his fingers and palms on the devices. But his smile turns to a frown as he discovers the same virus message that Brown has been receiving: ERROR - 41. He taps at some controls, then whispers:] Michael Jennings:
I bugged it! I rigged it, so Jimmy wouldn't use it against me. Rachel Porter:
Then you can fix it, right? [He sighs and climbs down into the engineering section] Michael Jennings:
Where would I have planted that bug? Maybe I wanted the motherboards. Whoa! Whoa! [He sees that Rachel has picked up a monkey wrench] Michael Jennings:
We won't be needing this, okay? You're dangerous with that thing! [He seizes the monkey wrench and tosses it away onto the ground. Rachel's fingers curl against her bosom] Rachel Porter:
You must have given yourself something to help you find it. Michael Jennings:
I know. The only things left would be are the bullet and the, this. Rachel Porter:
The crossword? Michael Jennings:
Yeah! Michael Jennings:
[He studies it]
Look at this: 12-Down. [the clue is circled in ink and it reads: Used for changing connections in a circuit] Michael Jennings:
Maybe it's here. Michael Jennings:
[He counts circuits until he comes to the twelfth]
Maybe it's a circuit diagram? I wouldn't have put it in the primary path. Twelve down. [By placing the crossword puzzle over the grid, he discovers the bug; and he looks at Rachel with sly pride. They grin at each other. The virus warning turns into a pleasing display on the screen] Michael Jennings:
[In another room, Rethrick has been spying on them and has followed their progress] Jimmy Rethrick:
Take 'em. Wolfe:
Okay, Corridor 3, Level A: Jennings' lab. [Rethrick arms his pistol and starts walking]