Looks like Steve McGarrett, Chin Ho Kelly and the gang have real-life crime on their hands — right in the midst of their film set.

Members of the cast and crew of the freshly revamped television series "Hawaii Five-0" were each handed a memo last week from unit production manager Jeff Downer that said, "I am sorry to report that theft has become a serious problem on the set."

Downer’s letter urged crew members to keep valuables somewhere safe while on the set, and recommended anyone seeing suspicious activity to alert assistant directors.

Additionally, "we are going to set up video surveillance cameras to help monitor this problem," Downer wrote. "If anyone is caught, they will be prosecuted to the full extent of the law."

While the letter does not say what was taken or how many thefts there have been, it does indicate that the items belong to cast and crew and that the thieves might be in-house.

"As a reminder, we are an extended family, please let’s not steal from one another."

Both CBS and "Hawaii Five-0" production representatives declined to comment on the thefts or even acknowledge the validity of the memo.

The show began shooting in July both at its set at the site of the former Honolulu Advertiser Building at 605 Kapiolani Blvd. and at various other locations throughout Oahu.

Routinely, there are more than 100 cast, crew, security and others on site during a shoot.

The new "Five-0" on won its time slot Monday for the third straight week, drawing 12.03 million viewers.

The original show ran from 1968 to 1980 and is widely regarded as the one of the most popular police dramas in TV history.