Chornobyl didn’t fail in one bad moment. The control rods had been pulled out hours before anyone needed them. This sermon outline, part of the Nuclear Family series, uses the 1986 reactor disaster to show why conflict in marriage isn’t the failure; losing control of it is. Drawing on Ephesians 4:26–32 and James 1:19–20, it explores how to be angry without sinning, why unresolved anger gives the devil a foothold, and how repair matters more than winning the argument.