Tessa is a member of the Electroclan. She escaped from the Elgen at the Peru Starxource plant and live in the amazon jungle with the indigenous tribe called the Amacarra. She join the Electroclan after the tribe rescued Michael from the Elgen and brought them together.
After Ostin explains the history behind the Apache Airlines logo and symbol on the hangar and their connection to Douglas, Arizona, Tessa pessimistically connects the story to the potential end of the resistance. McKenna states Tessa is supposed to enhance their powers, not diminish them.
As everyone is exiting the plan, Tessa threatens to punch Ostin, and McKenna defends him.