A Midsummer Night's Dream: Act I

In the first act, we learn that Thesius, the Duke of Athens, is marrying Hippolyta, the Queens of the Amazons, in four days. We also met Egeus, who wants his daughter Hermia to marry Demetrius- if she doesn't she will have to become a nun. Hermia doesn't love Demetrius, she is in love with Lysander, but her best friend Helena is obsessed with Demetrius and is extremely jealous. When Hermia tells her that she and Lysander are eloping, meeting in the forest that night, Helena plans to tell Demetrius and foil their plan.

At the same time, a group of craftsmen is planning a play to perform at Thesius' wedding. The director is Peter Quince, but he is pushed aside by the over-confident Nick Bottom. Bottom thinks that he is the best actor, and the smartest person (which he isn't) and wants to play all the parts. The craftsmen plan to practice that night in the same forest that Lysander and Hermia are meeting in.

I wonder if the craftsmen will run in to Hermia and Lysander. If they do, will they know who they are, or will they let them go? What will happen to Helena and Demetrius if Hermia and Lysander leave?