The second season of American crime- comedy-drama television series Castle was ordered on May 15, 2009, by ABC. The season aired from September 21, 2009, to May 17, 2010. [1]

The second season of Castle premiered on September 21, 2009 on the network ABC in the United States and concluded on May 17, 2010. It contains 24 episodes.

But a mysterious murder forces the pair back together. Though their relationship remains rocky, their passion for cracking cases keeps their collaboration cooking. Can Beckett forgive Castle for poking …

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Thinking they're investigating the murder of a squatter, Castle and Beckett soon find themselves unraveling a multi-million dollar heist. Meanwhile, Castle tries to keep Beckett from finding out that …

Currently you are able to watch "Castle - Season 2" streaming on Amazon Prime Video, Hulu, Amazon Prime Video with Ads or for free with ads on The Roku Channel.

Stream full episodes of Castle season 2 online on The Roku Channel. The Roku Channel is your home for free and premium TV, anywhere you go.

When the new season begins, Castle is wrestling with how to repair his relationship with Beckett, while struggling to finish his soon-to-be-published bestseller, Heat Wave.

In a two-part storyline, Federal Agent Jordan Shaw, an insightful and accomplished Federal investigator, teams up with Castle & Beckett to hunt down a cunning and elusive serial killer.

Season 2 guide for Castle TV series - see the episodes list with schedule and episode summary. Track Castle season 2 episodes.