

'Prologue/The Day I Got Expelled' – Percy, Mr.Brunner/Chiron, Poseidon, Hades, Medusa, Kronos, & Others Dodds, Clarisse La Rue, Katie Gardner & Others Sally Jackson, Silena Beauregard, Charon, Oracle, & Others Principal roles and original cast Character(s) Percy declares that there will be a war no matter how they try to stall it, but he and his friends will be prepared and do whatever it takes to fight it ('Bring on the Monsters'). Luke inadvertently tells Percy that he is the true lightning thief and that he has teamed up with Kronos to get back at the gods, who he feels have done him wrong ('The Last Day of Summer'). He confides in Luke that he feels just as confused as before, and Luke agrees, stating he felt similar after his own quest.

The trio return to camp heroes, but Percy couldn't be more troubled. Percy assures Grover that no matter who he is or what he does, Percy will always want him as a friend. He holds himself responsible, and thinks Percy will be ashamed of him ('The Tree on the Hill'). However, the team was attacked, and Grover failed to save Thalia, who ended up sacrificing herself, and being turned into the tree that protects the boarders of Camp Half-Blood. Grover confides that a few years back he was sent to escort Luke, Annabeth and Thalia Grace, Zeus's daughter, to camp. Percy wakes with a jolt and asks Grover if he has ever heard of someone named Thalia. The powerful voice mentions sacrifices and brings up a name, Thalia ('The Weirdest Dream Reprise'). While on a bus ride to Los Angeles, Percy has a dream of a man speaking with someone whom the man refers to as 'my lord'. They also meet up with Ares, who gives them a lift to Nevada ('Drive'). Louis and they set off, encountering many dangers such as a Chimera, nasty storms, some dam snacks and the Lotus Hotel and Casino.
