Here is a short plot summary of All’s Well That Ends Well:
Helena goes home and prepares to seek Bertram out. She disguises herself as a pilgrim and goes to Florence where she is befriended by a widow and her daughter, Diana. In the meantime Bertram has fallen in love with Diana.
Helena fakes her death and Bertram returns to the French court. His mother and Lafeu, also believing Helena to be dead, arrange for Bertram to marry Lafeu’s daughter. Bertram gives Lafeu a ring that Helena, as Diana, had given him at the late night meeting in Florence and it becomes apparent that it is the ring that the king had given Helena on her marriage to Bertram.
In the midst of the confusion Diana arrives with Bertram’s ring and accuses him of seducing and abandoning her. Bertram denies it but Lafeu withdraws his daughter from the marriage. The king orders that Diana be taken to prison but then Helena appears as a witness to the truth of Diana’s story. She is pregnant and her story soon comes out. Bertram accepts her as his wife. The king offers Diana a choice of husbands from among his courtiers, with a rich dowry. The play ends with everyone being more or less satisfied.