Gloves Off - S2-E4
Continuity mistake: Tuco is confronting Mike out in the parking lot. When Mike offers to exchange information he's standing slightly to the left of Tuco as he faces him, with his head turned to Mike's left looking at him. But each time the camera cuts to a side view of them both, Tuco is closer to standing right in front of Mike, with Mike's head turned slightly to his right.
Answer: The bulldozer could be disassembled, the individual pieces carried down, and then reassembled once underground.
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