 Commander Adama, Billy and the Chief join Laura Roslin, Apollo, Starbuck, Helo, the copy of Sharon and Tom Zarek in Kobol where they re looking for the Tomb of Athena. While Zarek and his buddies try to persuade Sharon to kill the Adamas, Gaius Baltar in Galactica tries to discover if his visions of Number Six mean he s really mad.