Percy plays dodgeball with a bunch of Laistrygonians and blows off another school.

Percy has a vivid dream which leaves him worried about Grover and witnesses a shadow lurking near him. Sally tells him that he cannot go to Camp that summer due to complications. 

Percy gets betrayed by a friend and nearly escapes death. Annabeth decides to give her Dad one more chance. Grover goes away in his search for Pan. We are left with new hopes and excitement about what's gonna happen next summer at Camp Half-Blood.

Percy addresses his Dad and Zeus atop the Empire State Building. He discloses his suspicion about Kronos stirring in Tartarus and being behind all of this. However, Zeus closes the discussion and we are left hanging.

Percy confronts Ares about the Lightning bolt. With thunder overhead, the Underworld below, earthquake and fire lining the Californian skyline, and cops and mortals on the ground, Percy challenges the War God to a 'classic' duel.

Grover's shoes did make quite a scene. Hades' fury and Furies cause Percy to make a choice between his mother and his friends. We finally find the lost bolt of Zeus in the most unexpected place, adding fuel to fire.

With Charon, the Ferryman's help, the trio descends to the Underworld in an elevator encountering spirits and ghosts. Annabeth forms an unlikely bond with Cerberus, the hound of Hades.

Once again underwater at Santa Monica pier, Percy receives gifts from a Nereid. Annabeth and Grover have a gruesome stretching exercise. After cruising with mortal and immortal brutes, finally, they acquire the address to the Underworld.

Ares procures a free ride to L.A. for the trio along with a zebra, a lion, and an antelope. Percy finally learns the truth about Annabeth and Grover's history with Thalia and Luke. At a distracted stop at Lotus Casino in Vegas, time slowly ticks away.

The God of War makes a dramatic entrance with a queer request (order) for our demigods. Percy and Annabeth ride the Tunnel of Love battling Cupids, cameras, and spiders.