As soon as mother Eliza arrives on the scene in Livewire, tensions are high amongst the Danvers clan. Alex is worried that shes about to get an earful over Kara having become Supergirl, whilst she also has her own secret in terms of Eliza not being aware that her birth daughter is working for the DEO. By the end of this episode, Eliza would start to scold Kara a bit more, Alexs real job was revealed to her mother, and wed even get the news that Jeremiah, Alexs birth father and Karas foster father, didnt die in a plane crash as initially claimed. Theres certainly some secrets amongst the Danvers family, and itll be interesting to see if theres any further big reveals when it comes to Kara and her Earth family.