Nikita Bogolyubov

The team members set aside their personal and romantic issues when hackers take over targeted U.S. military aircraft and war ships, pointing the weaponry at American cities.

The team work together to stop a group of hackers who try to take control of US military aircraft and war ships.

When Jeff sells his car, Audrey tries to convince him to use the money doing something fun with her; Adam has the last laugh when Jen and Russell try to teach him about responsibility.

Castle and Beckett are investigating the murder of a Russian diplomat's son; Castle is required to entertain a Russian security guard whose involvement in the case runs deeper than anticipated.