 Plummer joined League Two side Hereford United on an initial one-month loan on 21 August 2009, alongside his clubmate and fellow young striker Marlon Jackson.On 21 January 2010 he joined Gillingham on loan for a month, making two appearances.After dropping out of professional football for a season, Plummer joined Portimonense S.C. of the Portuguese second division in July 2011.