Across continents and decades, five brilliant friends make earth-shattering discoveries as the laws of science unravel and an existential threat emerges.

Two single friends agree to be each others’ respective plus one for each wedding they’re invited to during a particularly busy nuptial period of their lives.

David and Carolyn marry in Hawaii and continue to work to find a cure for both their afflictions in a race against time.

When the Emperor of China issues a decree that one man per family must serve in the Imperial Chinese Army to defend the country from Huns, Hua Mulan, the eldest…