The scene would then cut to Missandei, who was with Gilly and baby Sam behind the statue of Lyanna Stark.
Gilly tries to cover Sam’s mouth to keep him quite but he screams and two wights, called “dead starks” approach them.
Just before the wights can attack them, the script reads: “They scream and fall to the floor.”
This is when Sansa and Tyrion can be seen behind the two wights with their daggers.
source: express.co.uk