Set in the then-future of 2022, Deathwave (also known as 2022 Tsunami) depicts a Thailand reeling from the escalating effects of global climate change. The narrative centers on a massive underwater earthquake in the Gulf of Thailand that triggers a catastrophic tsunami, threatening to submerge Bangkok and the surrounding coastal regions. The world is portrayed as one on the brink of environmental reckoning, where the natural world has become increasingly volatile and unpredictable due to human-induced atmospheric shifts.

The societal dynamics focus heavily on the tension between scientific foresight and political pragmatism. The Thai government is shown struggling with the decision to issue an evacuation order that would devastate the tourism-dependent economy, reflecting a real-world dilemma regarding long-term disaster preparedness versus short-term economic health. On Earth, this version of 2022 is defined by a lack of trust in technology; despite the presence of advanced monitoring systems, bureaucratic inertia and the fear of 'false alarms' create a deadly delay in emergency response.

In terms of predictions, the film serves more as a sociopolitical warning than a technological roadmap. While the specific 2022 date passed without a localized disaster of this magnitude in the Gulf of Thailand, the film correctly identified the increasing frequency of extreme weather events and the critical necessity of robust tsunami warning buoys, which remain a point of real-world maintenance struggle in the region. The film’s depiction of a prime minister caught between scientists and businessmen remains a poignant reflection of contemporary climate policy debates.