On the evening of April 18, 1775, Lt. Col. Smith leaves Boston via Charlestown. His goal is to seize and destroy munitions in Concord. Delays prevent his force from leaving Charlestown before Paul Revere and other riders alert the countryside. At around dawn on April 19, the regulars confront a group of militia on Lexington Green.
The regulars at Lexington are an advance company led by a young Lieutenant. They fire on the militia before the main column arrives. When Col. Smith arrives, he stops the shooting and restores order. By then, many lay dead and wounded on the Green. Smith reassembles his column which marches on to Concord.
In Concord, the militia get word of the attack at Lexington and pull back out of town to North bridge. The British arrive and search for munitions. Smith sends a force of light infantry across North bridge to Barrett's mill in search at munitions. While three companies hold North bridge, the militia strike, killing several regulars and retaking the bridge. The British at Barrett's mill are cut off, but manage to cross the bridge anyway, right past the militia, and rejoin the main force in Concord.
Smith is now faced with having to march back to Boston through a gauntlet of hostile militia bent on payback.
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