The scene starts with two guards Barnardo and Francisco guarding the castle in a country preparing for war. Telling an unknown person to reveal themselves “stand and unfold yourself.”
They are joined by horatio and marcellus who are allied to them. They discuss a ghost which apparently appears in the area at night.
When the ghost appears it reminds barnardo of the dead king.
This gets the group to think why there is war which is soon explained by horatio. The story of Hamlet winining with the fortinbras of Norway and gaining their land is told.
Then the ghost appears and ho ratio is eager to talk to it so he finds out if the ghost knows the future of this land. But the ghost goes away because dat comes.
React!