The eponymous Celtic warrior who rules the Iceni people alongside her husband Prasutagus. The King dies at the hands of Roman soldiers, leaving Boudica's kingdom without a male heir and the Romans seize her land and property.
Follows prodigy vulcanologist Antoinette Vitrini and her sister Emily as they attempt to blow the whistle on an illegal oil drilling scheme before it sets off the eruption of a super-volcano directly beneath Miami.