Five years ago, the Clan invasion of the Inner Sphere was halted by the Battle of Tukayyid. Now, a Second Star League, a coalition of every Great House, ComStar, mercenaries, and even some of the Clans themselves descend on the Occupation Zone of Clan Smoke Jaguar hellbent on pushing them back out of the Inner Sphere entirely. On Yamarovka, Pesht, and Albiero, Delta and Zeta Galaxies of the Smoke Jaguars fight a desperate battle against the SLDF offensive. The survival of their entire Clan hangs in the balance!