Stephanie, C.J., Matt and Summer take a weekend vacation to San Diego to demonstrate water rescue procedures while staying at the famed Hotel Del Coronado. Summer correctly begins to think that her hotel room is haunted, when she's a haunted by the ghost of a wealthy businessman who mistakes Summer for his lost love from a doomed love affair back in 1943.

C.J. thinks about her future as she spends more time with Keith and helps to rescue a stranded dolphin. The ghost who haunts Summer's hotel room takes her to be the love of his life who betrayed him and plots to reenact the tragedy that drove him to suicide 50 years ago.