The New Teen Titans, Vol. 1 #32A (1983)

Thunder And Lightning
When the Titans come back from Zandia, Frances Kane returns to Blue Valley, Speedy returns to his work as a government agent, and Robin leaves the Titans, placing Wonder Girl in charge; Speedy learns that there is trouble in St. Louis, MO, and the Titans go there and battle the reluctant Thunder and Lightning, who are searching for their father, who may hold the secret of controlling their devastating elemental powers. Learning that Williams’s last known residence was in a Maine fishing village, the brothers go there, but are fought to a standstill by the Titans until Wonder Girl (through Wonder Woman’s Pentagon connections as Diana Prince) learns that their father has disappeared without a trace after a laboratory accident. Thunder and Lightning voluntarily surrender themselves to S.T.A.R. in hope of a cure, while the Titans vow to continue the search for Walter Williams.
Release Date: 1983