Ep 11. The Birthday Synchronicity

In The Big Bang Theory season 10 episode 11 titled "The Birthday Synchronicity," the gang gathers to celebrate the imminent arrival of Howard and Bernadette's baby. However, the festivities are halted when Amy announces that she and Sheldon have set a wedding date, which happens to fall on the same day as Howard and Bernadette's due date. Meanwhile, Raj gets himself into a predicament when he accidentally sends out a generic invitation to a party he's hosting but forgets to specify the event's theme. As a result, everyone shows up dressed to different themes, causing chaos and confusion. Leonard and Penny also have their own dilemma when Leonard's gift for Penny falls short of her expectations, leading to disappointment and hurt feelings. Along the way, the gang must navigate their personal issues while still managing to come together in celebration.