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CSI: Crime Scene Investigation fanart Welcome to CSI: Crime Scene Investigation at WatchOnlineFree.TV, a great website for those who love to watch CSI: Crime Scene Investigation online for free. Here you can stream all episodes online without having to downloading any additional software on your computer. If you missed the latest CSI: Crime Scene Investigation episode on TV, make sure to check our website to follow up on this series!


Latest episode, aired 2 months ago.

The End Game
Episode 18
Air Date: Feb 15
Season: 15

The End Game

The CSI unit faces the final showdown with the Gig Harbor killer whose motives are finally revealed. Meanwhile, Nick Stokes makes a decision…

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Under My Skin
Episode 17
Air Date: Feb 15
Season: 15

Under My Skin

The CSI team investigates a murder with ties to two teenaged kidnapped girls.

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The Last Ride
Episode 16
Air Date: Jan 27
Season: 15

The Last Ride

The CSI team investigates a death involving a vintage Rolls Royce and a chrome-covered victim.

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Hero to Zero
Episode 15
Air Date: Jan 25
Season: 15

Hero to Zero

The CSI team investigates the murder of a young victim dressed as a superhero.

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Merchants of Menace
Episode 14
Air Date: Jan 25
Season: 15

Merchants of Menace

The CSI team investigates a homicide at a convention for people who collect macabre murder memorabilia.

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