Game of Thrones spinoff A Knight of the Seven Kingdoms: The Hedge Knight is coming to HBO next year. The Hedge Knight is based on the Dunk & Egg fantasy novellas by George R.R. Martin, whose A Song of Ice & Fire novels and book Fire & Blood were previously adapted as the HBO series Game of Thrones and House of the Dragon, respectively. The Hedge Knight is in pre-production and will premiere in late 2025. The Hedge Knight takes place a century before the events of Game of Thrones and follows two unlikely heroes as they wander Westeros: Ser Duncan the Tall, a young, naïve but courageous knight, and Egg, his diminutive squire.