The travelers unwittingly introduce criminals to a society without evil.

The travelers - minus Liana - receive information that could be a way back to their own times on a stone from a mysterious horseman. They meet a strange couple who are not exactly what they seem to be.

When Liana is captured by a society that treats women as slaves, the party becomes involved in a revolution that completely eliminates the problem.

Arriving at a seemingly abandoned 20th century carnival, the travelers become part of a game played by an ancient Greek sorcerer named Apollonius who, with the help of two assistants, plans to possess Willaway's body so that he can escape his imprisonment.

Varian becomes infatuated with a woman after the inadvertent injection of a love serum, unaware that the woman's people intend to sacrifice him to appease their gods.

The travelers learn of a plan by a military commander to invade the other time zones on the island.

Scott is made to join a colony inhabited solely by children led by the bullying teenager Alpha. Their forebears lived in a society decimated by war and the group inherited a deadly weapon used to keep any elders from over taking their leader.

The travelers are separated by a red cloud which leaves Liana as the "guest" of Jonathan Willaway, who is the master of a utopian community of androids, and the others trapped in a dark swamp surrounded by green skinned humanoids. 

With many of the original party returned to their own time, Varian, Scott and Fred find themselves caught up in the machinations of a being called The Source, which has enslaved the inhabitants of the city of Atlantium, built by the survivors of the original Atlantis. The Source plans to use Scott's life force to regenerate itself. The trio are aided by Liana, who reveals that she is half alien.

A group of scientists sailing the Caribbean are shipwrecked after entering a strange green mist in the Bermuda Triangle. They do not know the island they are stranded on but it seems past, present and future co-exist. After meeting 23rd century healer Varian and encountering 16th century privateers, the survivors begin their quest to return to their own time. But three citizens of Atlantium, a city containing the survivors of the lost continent of Atlantis, have their own plans for them.