 As Marshall's attempt to sabotage the Eden II project is thwarted when a suspicious Lomas changes the computer authorisation code, Jay desperately tries to convince a tired Mel that they must return to EmbroGen to stop Salko's evil plan.But how do they regain access to the building?Just when all looks lost, Jay pulls Maggie's wallet out of his pocket and opens it, stunned when he finds a detailed map of the EmbroGen building.