Unfortunately Kenneth Johnson, the author of the original TV-movie/miniseries, left the production during the writing phase of "The Final Battle" because of creative differences. This lead to a the writing being quite a mishmash; various characters were added to the cast for - no specific reason, some unresolved storylines left hanging, and the writers introduced a literal deus-ex-machina ending.
That having been said, the Final Battle is still quite watchable. Just not on the same level as the original.
That having been said, the Final Battle is still quite watchable. Just not on the same level as the original.