You must complete the new game update in Disney Infinity 3.0 before you'll be able to play the Marvel Battlegrounds Play Set, the Finding Dory Play Set, and the Alice Through the Looking Glass Figures. If your console is connected to the internet you should be automatically prompted to download the update.
An internet connection is required to complete the game update. For instructions on how to connect your console to the internet, please refer to your console’s user guide or click one of the following links:
Once your console is powered on and connected to the internet, insert the Disney Infinity 3.0 game disc. While the game is loading, you may be prompted to download an update. Follow any on-screen prompts to initiate the installation. Once the update is complete, the game will launch and you can start playing!