"Criminal Minds" season 9 finale airs tomorrow night - find out where to watch online a free live stream of "Criminal Minds" season 9 finale titled "Demons." According to spoilers, a "sad secret" from the past will be revealed! Also, an action-packed scene in the finale will even include Garcia!

If you can't make it to a TV by 9pm EST tomorrow night to catch "Criminal Minds" season 9 finale, click here or here to watch "Demons" online via a free live stream.

If that doesn't work, CBS also offers episodes on their website to watch online the morning after an episode airs.

The episode 24 synopsis reads: "Conclusion. Season 9 ends with the BAU continuing to investigate the murders of prostitutes in Texas and uncovering a deep web of corruption that could be the motive behind the killings. Meanwhile, one team member faces a sad secret from the past; and Garcia is forced into action to save a colleague."

According to Celebrity News & Style, "Criminal Minds" actress A.J. Cook said the finale will be "huge." One of the character's life hangs in the balance while another one will have a "sad secret from the past" revealed.

"It's a nail-biter, it's an edge-of-your-seat action ride and the cool part too is we get to see Garcia jump into that action scene, so yeah, we're just kind of flipping everything on its head and seeing how it all falls. It's going to be an exciting, exciting finale," Cook said.

Catch "Criminal Minds" season 9 finale tomorrow night, May 14, at 9pm EST on CBS.

Season 10 will premiere this fall.