1) The Teller family relies on keeping toxic secrets from each other and outsiders to maintain loyalty and dependence within the intensely bonded family unit, which is necessary for their survival. 2) Gemma Teller holds toxic secrets to keep her son Jackson close and protect the family, while Jackson questions the extremes of club life and must keep secrets from his fiancée Tara. 3) Tara, as Jackson's fiancée and future matriarch, shares toxic secrets with Jackson as well as secrets being kept from her, and Clay wants her dead because she knows too much.