All at once.

Ultramom vanished to go work, Ultraboy grabbed one of the gallon jugs of milk and sped back to the control room. The recording didn't get deleted, but instead went onto his personal flash drive, then was deleted from the mainframe. He pulled up the records and went down to her lab. The antidote was straightforward, but time consuming to make. One round would take him four hours. He glanced at the milk and took a carefully measured teaspoon, then got to work.