With the merciless Melkur in control of The Source, the Doctor and his allies have only a slim chance of deposing him, which also puts the peace of the Traken Union in severe jeopardy.
Did You Know?
In the original script, a key element was a stolen component from the TARDIS, which The Master uses to construct a time disintegrator with which he plans to kill the Doctor. See more
So... a new body... at last!
[after absorbing Tremas
A new body... at last!