The Holly King and The Oak King

The Holly King, ruler of winter, snow and darkness and the Oak King, leader of summer, warmth and light go to battle twice a year to fight for which season will reign supreme. One particularly long winter, the Holly King defeats the Oak King once and for all, plunging the world into bitter cold and darkness. Can the Oak King pick himself up and restore balance to the seasons, or will the world be stuck in a deep freeze forever?