Gatchaman (2013)

Experienced I.S.O. Group leader Ken struggles with his past and guilt over a fallen comrade he had feelings for. The new threat brings Joe back from a European assignment. He has history with Ken and their mutual team mate, Naomi, whom he proposed to just before she died in an ambush years before. Ken still feels guilty and struggles to lead Ryu, Jun, and Jinpei. Jun seems to have a wandering love interest in Ken. There is a new threat from the Galactor forces, "Last Suicide". They have to find out what it means and how to stop it. And the first step turns out to be capturing alive and questioning Iriya, an adversary and Naomi's killer. We find out more in a flashback about Ken's and Joe's past childhood friend Naomi and the details around the mutual love interest. Later Ken and Joe agree to capture Iriya alive, but Ken has a change of heart and tries to kill Iriya. Once Iriya is captured he reveals some details but other ISO plans come to light too. Too late it is realized that Iriya had his own plan to be captured and thus gain access to the inside of I.S.O. Ken and Joe have to fight their inner demons and work with the rest of the team to save the day.