What happened to the malfoys in the Deathly Hallows?

Answer 1

They were forced to allow the death eaters and Voldemort into their home, and Draco was forced to torture and kill people, though all of the Malfoy's became scared of Voldemort and his plans to destroy others. At the end, Lucius and Narcissa are separated from Draco while in the Dark Forest, waiting for Harry to come to Voldemort. Once Voldemort uses Avada Kadavra on Harry, he asks Narcissa to see if he is dead. As Narcissa hears his heart beat, she asks if Draco is alive in the castle, and he whispers yes to her. She saves him and claims that he is dead, and then when the Battle of Hogwarts resume, Lucius and Narcissa are seen running around, screaming for Draco, not even attempting to fight. Once Harry kills Voldemort and everyone is celebrating, the Malfoy family are off to the side, unsure if they should be there or not, but they are relieved that Voldemort has fallen.

Answer 2

He is still on Voldemorts side and tries to stop Harry, Ron and Hermione from getting one of the Horcruxes for the Room of Requirement. Harry saves his life from the room, and also when a death eater questions Malfoys loyalty. Malfoy is stays alive in the end and he and Harry even make eye contact 19 years later while their kids are boarding the Hogwarts Express.