This colossal explosion levels the sept and kills a whole slew of important characters in one fell swoop.

It’s not just fun to watch, but pivotal to the narrative.

As the White Walkers grow bolder, the Wildling enclave of Hardhome falls under their icy shadow.

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Both he and Jon are illegitimate children, hence the name of the episode.

The battle opens with Bolton killing Jon’s youngest brother right in front of him.

From that point on, all bets are off, and the assault is on.

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Things actually don’t go very well for Jon.

The Boltons are disciplined soldiers, whereas Jon mostly leads a ragtag band of Wildlings.

Arriving on ships, with drums of war beating, Stannis' forces fall into a terrible trap.

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NEXT:The Best ‘Game of Thrones’ Episodes, Ranked

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King Joffrey begins choking at his wedding as Lady Margery and Tyrion Lannister look on in Game of Thrones.

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The Mountain and Oberyn Martell fight in a courtyard in Tyrion Lannister’s trial by combat.

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Ned Stark, played by Sean Bean, in his execution scene in Game of Thrones

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Daenerys Targaryen (Emilia Clarke) and her closest advisors stand surrounded in the fighting pits as the Sons of the Harpy launch an ambush.

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Emilia Clarke as Daenerys Targaryen atop her dragon, Drogon, in Game of Thrones

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The wildlings evacuate Hardhome

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Roose Bolton stabs Robb Stark in Game of Thrones.

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Kit Harington as Jon Snow in the Battle of the Bastards, Bloodied face and sword in hand on Game of Thrones.

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Wildfire explodes, destroying Stannis' fleet in Game of Thrones.

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