initiate the Chromecast app and connect to your Chromecast on your internet.
Tap the drop down menu button in the upper right-hand corner and then select “check for offers.”
You should then be sent to a web page to redeem the two free months of Hulu Plus.
So what’s the catch, you ask?
There’s a couple.
you’ve got the option to sign up for the deal through the end of December 2014.
PSA: Current Chromecast Owners Can Also Get Two Months of Free Access to Hulu Plus| Android Police