Ethan Raines (Brendan Hines) is a CIA agent and the ex-husband of Matty Webber (Meredith Eaton). Ethan met Matty when he was assigned to rescue her from enemy captivity. While on a mission in Costa Rica, they secretly got married; with only a few people knowing about it.
In Episode 3×07 (Scavengers + Hard Drive + Dragonfly), Matty sends Team Phoenix to Ghana to retrieve a computer hard drive with sensitive information on a file named “Dragonfly”.
Later, it’s revealed that Matty is married to Ethan Raines. She hasn’t seen him for 8 years because he’s an undercover CIA agent on a still ongoing mission. In “Operation Dragonfly”, Ethan is investigating and infiltrating the S-Company, a criminal syndicate in South Asia.
A few years ago, Ethan went off-radar, stopping all communication. When his cover is blown, she and the Phoenix team go to retrieve him in Episode 3×10 (Matty + Ethan + Fidelity); finding him living with another woman he has a child with. At the end of the episode, he decides to go into witness protection with his new family, definitely breaking it off with Matty.
In Episode 3×13 (Wilderness + Training + Survival), Matty and Jack Dalton (George Eads) help Ethan and his new family relocate to Nebraska under a new identity.
When his family is threatened, Ethan commits treason in Episode 3×21 (Treason + Heartbreak + Gum). While Matty and Team Phoenix manage to save his family, they can’t prevent Ethan from getting arrested.
3×07 Scavengers + Hard Drive + Dragonfly
3×10 Matty + Ethan + Fidelity
3×13 Wilderness + Training + Survival
3×21 Treason + Heartbreak + Gum