Peter Halliday

A beautiful assassin gets Templar involved in a plot to overthrow a South American dictator, a scheme that could cost Simon his life.

The Doctor is desperate to save the lives of Jo and everyone trapped inside the Miniscope, but is hindered by the Inter Minorans who have their own agenda.

The Doctor and Jo arrive in 1926 on the cargo ship SS Bernice. But when the TARDIS is taken by a giant hand and a dinosaur appears, the Doctor suspect that all is not as it seems.

The Doctor and Romana become the reluctant guests of Scarlioni who is planning to steal the Mona Lisa despite having six Mona Lisas hidden in his cellar - all of them genuine.

Count Scarlioni is revealed to really be Scaroth, last of the Jagaroth and is funding the construction of a time machine - but for what purpose?

The Drashigs are pursuing Jo and the Doctor through the Miniscope. On Inter Minor, scheming bureaucrats intend to release the Drashigs in a plan to topple their leader.