WHEN MONSTERS ATTACK! On a solo excursion beyond the boundaries of the Cat’s Lair, Panthro is enjoying the solitude of the wilderness and a brief respite from his responsibilities when he is set upon by a pack of giant, hostile creatures. For a warrior of his nature, this just became the best vacation ever! But as the battle is joined, the true intent behind the attack is revealed — and this secret could spell doom for all the Thunderans on Third Earth! Acclaimed ThunderCats: Lost author ED BRISSON joins artist DAVE ACOSTA for an all-out slugfest starring the strongest of the ThunderCats in ThunderCats: Panthro #1!