A Sea Base. BULIC: Too small to be a hunter-killer. Back to the TARDIS. DOCTOR: Around 2084. The function of the base depends on you! VORSHAK: The base is to remain on full alert, and Maddox?
Plan: A: The Doctor; Q: Who materializes the TARDIS inside a underwater military base? A: 2084; Q: What year does the Doctor materialize the TARDIS inside a military base? A: two fronts; Q: How many fronts is the base about to be attacked on? Summary: The Doctor materializes the TARDIS inside a underwater military base in 2084 during wartime. The base is about to be attacked on two fronts, secret agents within and a unknown enemy outside of the base.