Being first and only seen in the first movie, Amelia is known as one of the next candidates for a suitable agent in Kingsman. After offering Eggsy a pen, she introduced herself to Eggsy. Before walking away she told Eggsy to ignore Charlie and the other man candidates.
On the first dangerous test assigned by Merlin, she and the other candidates woke up after noticing the water. While everyone (except Eggsy) begins swimming their way into the toilet, Amelia is not seen to be with them. After Eggsy breaks the glass and completed the test, Merlin revealed her death, caused by drowning.
While everyone continued their training, she figuratively out of the training and sent to work for the non-action based elements of the Berlin branch of the Kingsman. Her 'death' serves this purpose for everyone applying in the Kingsman program. Merlin points out that everyone only thought about finding a way out rather than assisting each other, which can prove fatal for some team members as what happened in the first three minutes of the movie. Harry Hart told Eggsy that Amelia faked her death in order to emphasize how seriously the others should take this course. She is not seen again afterwards.