An American company involved in the building of a huge dam to produce electricity in the Southern American republic of San Marcos pays the A-team to act as new sheriffs in Rivertown, where the construction site is but several workers and even the previous sheriffs disappeared mysteriously. Once arrived there they swear each-other in (thus freezing BA's wrath for another drugging and flight) and find the obvious subject Boyle, a poker player, who is also the suspect of missing engineer Craig Monroe's sister.