Episode 38 of "Las Vegas"
s02e15 Whale of a Time

Ed receives an unexpected visit from a beautiful former co-worker, whose mere presence puts everyone's lives in serious danger. Danny and Mike are enlisted to protect the gorgeous womanwith a mysterious background, and find it to be much harder than expected. Meanwhile, Delinda and Nessa compete for the affection of a high-roller. What once began as a friendly competition turns into an all-out war as the two vie to see who is more appealing. Elsewhere, a man's bride-to-be strands him at the altar, leaving Mary to save his trip from being a complete disaster.