A major conflict that takes place in The Tempest is the tension between Prospero and Antonio. Prospero was once the Duke of Milan; however, Antonio usurped his brother from power, forcing Prospero to exile himself and Miranda to the island. Prospero is also angry with Alonso because Alonso aided Antonio in his wrongdoing. Prospero wants justice for himself, and this is one of the reasons why he has Ariel create the storm to run Alonso's boat ashore.
Another conflict in the play revolves around Caliban's hatred for Prospero. When he arrived on the island, Prospero killed Caliban's mother Sycorax and took over control of the island. Caliban feels that Prospero is intruding on his homeland and sees no reason why he should be slave to Prospero. When Caliban meets Trinculo and Stephano, he vows to work for them instead of Prospero and the three make a plan to kill Prospero and take over the island.