Here's a summary of Friar Laurence's plan:
Step 1: Counterfeit Romeo's Death: Friar Laurence provides a sleeping potion to Romeo that induces a state indistinguishable from death. In this semblance of demise, Romeo will be placed in a tomb.
Step 2: Inform Juliet: Friar Laurence sends a letter to Romeo's servant, Balthasar, instructing him to go to Mantua and inform Romeo of the Friar's plan. However, due to a series of miscommunications and delays, Balthasar fails to deliver the message in time.
Step 3: Waking in the Tomb: After Romeo is laid to rest, Juliet drinks a fatal potion thinking Romeo is dead. When she wakes up, she mistakenly believes Romeo is still alive and takes her own life.
Step 4: Confession: Friar Laurence, arriving at the tomb too late, finds Juliet dead. He plans to confess the true sequence of events to Romeo when he awakens.
Step 5: Romeo's Discovery and Suicide: Romeo awakens from his potion-induced slumber and discovers Juliet's lifeless body in the tomb. Overcome by grief and despair, Romeo takes his own life.
This plan, intended as a means of saving Romeo from exile and reuniting the star-crossed lovers, ultimately results in a series of tragic events and the deaths of Romeo, Juliet, and Paris, leading to the resolution of the conflict between the Montague and Capulet families.