Hopton had been attempting to march into Devon from Cornwall but was prevented from doing so by the Parliamentarian force at Plymouth under the Earl of Stamford and William Ruthven.
He retreated across Bodmin Moor and on 17 January was able to replenish his food and ammunition stores from three Parliamentarian ships that sought refuge from a storm at Falmouth and were captured.
On breaking camp, their dragoon vanguard encountered Parliamentarian cavalry to the east, and discovered Ruthven's army deployed on Braddock Down.
Ruthven had been unwilling to wait for reinforcements sent by Stamford to arrive and had marched to face the Royalists in the hope of a quick victory.
[2] The defending Parliamentarians, drawn from newly raised and inexperienced forces, fired just one volley at the Cornish, causing two casualties, then turned and fled.