The NCIS and the FBI actually working together?
On NCIS Season 13 Episode 15, the two of them team up when the Secretary of the Navy's daughter went missing.
In related news, McGee's childhood friend, Valerie Page, joined in on the case... but did she fit in with the team? The answer may surprise you.
Meanwhile, Gibbs had to go to crazy lengths in order to solve the case.
Was there a happy ending? Did the NCIS and FBI get on well? Or was this just a disaster waiting to happen?
Use the video above to watch NCIS online and find out for yourself.
Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.