Voltron: Legendary Defender (2016)

S1E9 Crystal Venom

As the situation escalates, Allura faces a devastating choice in order to protect her friends when the castle unexpectedly betrays them, propelling them toward imminent danger. Struggling with the weight of her decision, she must weigh the cost of her potential sacrifice against the well-being of the team, as they race against time to find a way to escape the castle's treacherous grip.