Dog trainer Binbin met Sun Yan, a pregnant woman, asking for help. His Alaskan dog Qiuqiu had bitten 8 people, but was never disciplined because of Sun Yan's doting. Binbin noticed that Qiuqiu was wild, had a high IQ, and was at risk of learned aggression. His suggestion for euthanasia was rejected, so he had to accept Qiuqiu for professional training. During this period, Sun Yan mistakenly mistook training for abuse and took a video of it that was exposed. As a result, Binbin was misunderstood by dog lovers and his business was damaged.