During Battle of the Bastards, Sansa warns Jon that Ramsay Bolton is duplicitous and that he should avoid playing into Ramsay's hands. Of course, Jon fails to heed this advice. As the armies gather, Ramsay brings out Jon's brother Rickon and tells the boy to run to Jon's army. The child obeys and Ramsay fires arrows at him as Jon sprints onto the battlefield to save his sibling. Sadly, Ramsay's arrows are swift and Rickon dies, and Jon stands defenceless in front of enemy lines. Jon's cavalry charges in at the last second and narrowly saves him from execution, but the Stark forces are outnumbered and Ramsay overpowers them with a pincer formation.
Fortunately, as is the theme with Jon Snow, Sansa saves him from certain death by calling on Littlefinger and the Knights of the Vale.