Adam moved out with Keiko and Tasha in tow. Although the directions and destinations weren't exactly the same, they had time to spare before the horde made its appearance, time that the head of the group Adam intended to use to have a brief conversation away from Ariad.
Hagen wasn't included in the meet up as he was never one to concern himself with the thinking and strategic stuff, he was a soldier that followed the commands of the superior.
When they could no longer sense Ariad and Hagen's energy signature in the immediate vicinity, the group finally stopped and Tasha spoke.
"So leader, what was the real reason you were so adamant to go against everything Ariad suggested?
This goes beyond not trusting him or being skeptical of his intentions."