Yates' moral conflict between loyalty to UNIT chain of command and alliance with the Doctor's temporal investigation

Under pressure from the Brigadier, the Doctor and Sarah enter a UNIT command center mapping an unprecedented threat—prehistoric creatures materializing across central London. The Brigadier reports eight million evacuations, unexplained …

Whitaker and Butler are forced into a defensive stance as the Doctor’s interference threatens their secret operation to depopulate London. When Yates reveals admiration for the Doctor’s scientific prowess, Whitaker’s …