In the climax, FDR Foster (Chris Pine) and Tuck Hansen (Tom Hardy) both confess to Lauren Scott (Reese Witherspoon) about their double lives as CIA agents and their initial deceit. Lauren is understandably upset and disappointed by their actions.
In the resolution, Lauren takes some time to reflect on her feelings and the two men vying for her affection. Eventually, she decides to give each of them a chance and invites them to meet her at her father’s house. The three have an awkward encounter as they navigate their feelings and the unusual situation.
Ultimately, Lauren makes a choice and reveals her decision to FDR and Tuck. The film concludes with her driving off with FDR, leaving the Tuck behind to get back with Katie. The ending suggests that love triumphs over the competition and secrecy, and Lauren finds happiness with one of the CIA agents.
“This Means War” combines elements of action, romance, and comedy, and the ending reinforces the theme of love conquering all, even in the midst of a competitive and unconventional situation.