A full recap for the second half of last night's The Prisoner will be posted shortly; in the meantime, here's a short synopsis of what happened.
6 was reintroduced to his family, though he was reluctant to believe that his brother was actually his brother, causing some stress for everyone involved. While on vacation to a not-so-far away resort, 6's brother admitted that he was indeed not his brother. They then set off to find an ocean which a woman claimed she had heard in the desert. They eventually discover the ocean, but the mysterious white ball catches the brother while in the ocean and drowns him. A distraught 6 returns to inform the family of his "brother's" death, but they laugh his pleas off. He returns to the ocean, but finds that it has been replaced by a vast tract of desert. He is then admitted to a mental institution by 2, and is wheeled off screaming into the institution.
A full recap of the episode will be posted before the third and fourth hours of The Prisoner air tonight.