At first, this pilot episode explored the main characters past and how they were related to Godzilla. Slowly by mid episode, they revealed the event of 2014's Godzilla's appearance in San Francisco and the exploration they grand parents did around giant monsters and a company mentioned in 2014: Monarch.
Kurt Russell's son played Young Lee Shaw, which is a very good decision considering he could played Kurt's demeanor when he played Lee Shaw.
Bill Randa's character played by 2 actors and the older version opened the mystery, played by John Goodman.
Bill Randa's son, Hiroshi, continued their exploration and ledt 2 wives, 1 in Japan and 1 in USA. The children finally met and tried to dig Hiroshi's uncovered past and his disappearance.
Meanwhile, a spark of decripted data was detected by Monarch and triggered their safety protocol.
A very thick drama with suspence and scifi touches, very strong signature of Godzilla's stories. A good beginning.
PS: I don't know how Monarch will be related to Godzilla Minus One, considering there's an ongoing saga of theatrical Godzilla movies in Japan.
PS: This is series is not related to, that I know of, Kings of Monsters series.