Tony Kirby (James Stewart)’s Timeline and Summary

At college, Tony works with a friend Bob Smith on trying to develop solar energy.
After college, he gives up on solar energy, and joins his father's bank.
His father promotes him to vice-president. Around the same time, he falls in love with Alice, his secretary.
He wants to marry Alice, but she's worried that his parents will disapprove (they do).
Alice invites his family to her house for dinner. Tony deliberately gets the day wrong.
Chaos results, including firework explosions, and everyone gets arrested.
At the jail, the Kirbys don't want to admit their son is connected to Alice. Alice gets angry, breaks up with Tony, and leaves town.
Tony is heartbroken and keeps going to the Sycamore house to see if Alice has returned.
He tells his father he's quitting the bank.
He returns to the Sycamore house, and runs into Alice there. She won't speak to him.
But then Tony's father shows up; he has had a change of heart and agrees to the marriage. Alice and Tony are happy.