Elena Houghlin is a scientist, engineer and inventor of Calisto -- a sustainable energy source that will revolutionize the way people use power. It will be ready as soon as she works out the last issue, if not it could be turned into a dangerous weapon. But when the cutting edge technology is pushed to an investor before she can do that, Elena turns to the Townsend Agency for help. Now, it's up to the Angels -- Jane, Sabina, and the newly recruited Elena -- to retrieve Calisto before it can be transformed into a weapon of mass destruction.

As the war between the Capitol and the districts reaches its peak, Katniss Everdeen embarks on a perilous mission to liberate Panem and confront President Snow. Joined by a team of trusted allies, she navigates deadly traps, shifting loyalties, and the heavy cost of rebellion, determined to bring freedom to her people and end the Hunger Games once and for all.