Almost Out of Oxygen: Viewers are constantly reminded of exactly how much time remains in the Duke boys' race against time to find Emery Potter and rush him to the bank before Boss and Jesse are doomed.
Big Damn Heroes: Or Big Damn Little Hero, as it's the Dukes' friend Emery Potter, the only one (other than Boss) who knows the combination to the vault, who rescues Boss and Uncle Jesse Just in Time.
Locked In A Vault: Boss accidentally winds up locking himself and Uncle Jesse in the bank vault ... and there's only an hour's worth of air before death becomes imminent.
