G.I. Joe: Sigma 6 S02 E01 Hidden

When COBRA comes in with their newest scheme yet, Team Sigma Six is ready and a go, with the best in new high-tech gear and vehicles. COBRA sends in the Zartan & the Dreadnoks to steal a plasma weapon from London. Sigma 6 are able to stop them with a lead sent by a mysterious source. But is this new source: Friend or Foe?