CHICAGO (CBS) — In Chicago and across the nation, people are preparing for what could be a massive protest for gun control in Washington Saturday.

This is video from All Saints Episcopal Church in Ravenswood.

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That’s where hundreds are gathering to board buses for Washington.

First, there was a pre-trip blessing.

Then an all night drive to D.C.

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The rally was organized by survivors of the deadly Florida school shooting.

People who couldn’t make the trip are preparing to protest here in Chicago.

On Friday organizers held a party at Union Park to make signs for Saturday’s march and rally.

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Volunteer training starts at 6:00 Friday evening.