Watch "Castle" season 7 episode 9 free streaming online!

Click here for "Castle" season 7 episode 9 free streaming.

For those who haven't seen the previous episode- "Kill Switch"- here's a quick recap from Hypable:

"Jared Stone is a hacker and they worry about his safety after Castle theorizes he is a whistleblower. Beckett sends out Espo and Ryan to bring him in for his safety.

On the way to find Stone, Espo and Ryan talk about how Javier is ready to settle down and have a family but he says that Lanie is happy with how things are and that he might be ready for more. He ruins the moment with a joke of course. They track him down in the city but he heads into the subway, so Espo follows on foot. Stone is acting very jumpy and Espo just manages to get on the subway in time.

As Espo approaches Stone, a transit cop is berating a kid who was going to tag the subway. Stone sees Espo's badge, freaks, and snags the transit cop's gun and pulls the subway emergency break. He demands Espo's gun. Javier is seemingly getting him to relax when Stone sees that his phone is still on (he was talking to Ryan while following him) and freaks out."

Click here for "Castle" season 7 episode 9 free streaming.

Meanwhile, here's the official synopsis of episode 9, "Last Action Hero:"

"When the star of Castle's favorite '80's action movie is mysteriously murdered, Castle and Beckett delve into the victim's secret past and pursue his killer with help from a team of aging action heroes. Krista Allen and Ted McGinley guest star."

"The episode will, of course, involve a couple of twists and turns but also some of the great Castle comedy that the stars, especially Nathan Fillion, can pull off so well. McGinley is a perfect casting choice with his background on sitcoms. He will be a perfect foil for Castle," Hypable noted.

Click here for "Castle" season 7 episode 9 free streaming.

"Castle" airs on ABC every Monday night at 9PM.