Firefly is an ex-G.I . Joe .
The only survivors are Roadblock ( Dwayne Johnson ) , Flint ( D.J . Cotrona ) , and Lady Jaye ( Adrianne Palicki ) .Meanwhile , Storm Shadow ( Byung-hun Lee ) and Firefly ( Ray Stevenson ) rescue Cobra Commander ( Luke Bracey ) from an underground maximum-security prison in Germany , who in turn abandons Destro .
G.I. Joe-COLON- Retaliation