Damn, Grayson, you're tickling my fancy with this!
Work Jessica Drew and her father into it, and I'll contribute to your screenwriting kickstarter!!
Perhaps her father, Jonathan Drew was one of the founding members of S.H.I.E.L.D. who was tasked with infiltrating HYDRA after it was discovered that they had been hiding out in Wundagore. When he arrived, he discovered that the members of HYDRA had abandoned their ways and took up a life of peace and prosperity, creating a utopian society of advanced science. Jonathan was so enchanted with the lifestyle of Wundagore that he abandoned his mission and started a life and a family there. Years later, his daughter Jessica joined Pietro and Wanda Maximoff under the leadership of the Baron Helmut Zemo to start a new HYDRA cell. However, Jessica was always taught about S.H.I.E.L.D. and HYDRA by her father, who always suspected that one day somebody
would try to rise up and restart HYDRA. Secretly, Jessica has joined Zemo's new HYDRA cell as a way of spying on him and reporting back to her father who is desperately trying to get in touch with S.H.I.E.L.D. for help.