HBO has revealed the fourth trailer for Game of Thrones Season 2, which premieres on April 1st at 9 p.m.

Based on the popular book series "A Song of Ice and Fire," by George R.R. Martin, this hit Emmy-winning fantasy series chronicles an epic struggle for power in a vast and violent fantasy kingdom. Among the returning members of the ensemble cast are Emilia Clarke, Nikolaj Coster-Waldau, Emmy winner Peter Dinklage, Michelle Fairley, Lena Headey and Kit Harington. David Benioff and D.B. Weiss executive produce.

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