Here's the breakdown:
* King Claudius plots to kill Hamlet, but Hamlet is too clever for his plan.
* Laertes, Hamlet's rival and Ophelia's brother, is manipulated by Claudius into believing Hamlet killed his sister.
* Claudius has Laertes' sword tipped with poison and arranges a fencing match between Hamlet and Laertes.
* During the match, Laertes wounds Hamlet with the poisoned blade.
* Hamlet then accidentally wounds Laertes with the same sword (since they exchange weapons during the fight).
* Both men die, and Claudius is also killed by Hamlet.
It's important to note that the poisoned blade was not originally meant for Hamlet. Claudius intended for Laertes to kill Hamlet, but Laertes' anger and desire for revenge made him a willing participant in the plot.