Time Line Catalyst

Escaping to Saturn, the Aderes is hit by something radioactive that damages 2 of it's engines. Time lines are crossed.
On moon of Neptune is a cavern with several figures in it. Each is marked with a number. On the end is a floating ball.

Number of statues even varies from time to time and they change location and formation.

Aderes and crew are selected to correct time line splits because Bill Johnson is an out of time catalyst!

Their near contact with another spacecraft results in them ending up in a time line stub.