Complete the supervillain's evil (but surprisingly well-organized) memo to his henchmen.

We must capture the mayor's prized poodle before midnight to ensure our demands are met. _____, I have ordered a fleet of silent hover-scooters for the extraction team.

The correct answer is To that end.

"To that end" is a formal discourse marker meaning "for that particular purpose" or "in order to achieve that goal."

"Notwithstanding" means "despite," "Conversely" introduces an opposite idea, and "Albeit" means "even though" (and cannot be used to start a standalone sentence in this way).