Warning: This post contains spoilers forCaptain Marveland its credits scenes.
But, she warns him, its only to be used in emergencies.
This is a nightmare, Steve says quietly, as the numbers click up.

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Ive had better nightmares, Natasha replies.
They have apparently retrieved and been monitoring Furys pager.
(Bruce has even managed to bypass the battery.)
Suddenly, however, the pager dies, and the signal its been sending craps out.
Lets fill in the rest, Feige explains with a laugh.
Goose helps keep the Tesseract safe from the invading Kree by swallowing it whole.
He then proceeds to cough up the Tesseract.