The scene began as there was a sight of Ted aka Boss Baby on his cradle sucking his thumb for a regular baby.
A little rewind - Boss Baby defeated Bootsy Calico, the cat mastermind, he later went on to defeat the Consortium of Ancients as well as Bubbezee with the help of his new field team after being fired. He later becomes the CEO of Baby Corp, begins operation "Yellow 100" and declares war against Pyg and Tam. He saves his job from a power-hungry consultant baby. In the final battle against Puppy Co., Pyg and Tam and the consultant baby, Boss Baby prevailed but retired after the battle to live the life of Ted Templeton.
Tim walked into the room and took Ted to wash him up for the day's activity. Suddenly, the baby monitor rang anf Tim picked it expecting Danny to be on the monitor but he was shocked to see Staci.
"Tim! I am happy to have reached you, we need Boss Baby as he is the only one who can deal with them", Staci told Tim immediately.
"Staci, don't you know that he is retired? He is no longer the boss, he is the baby", Tim answered.
"I thought of that and that is why Baby Corp has made a special baby formula that is for BB which will make him grow but he will have the intellect that he formerly possessed", Staci replied.
"What will Ted want? I know that he would have accepted but this takes critical thinking for me. This is for Yellow 100", Tim thought. Tim accepted Staci's proposal.
"I'll be right over with the formula", Staci said with a smile as the monitor blacked out.
Tim bathed him fast and put him in his Italian silk suit. With a smile Tim dressed him up for his retirement was over. After a few minutes, Staci appeared inside Ted's room handing Tim the bottle of the formula.
"Here goes nothing. Time for the business empire to rise as expected", Tim said ad Ted drank the milk.
"Nothing happened! I will have to deal with Simmons", Staci said with an evil smile on her face.
"That is not necessary as I am back and ready to assist you in any way Staci", Boss Baby said as he adjusted his tie. "Boss Baby is back", he said with a proud smirk.