Manhattan

1. S01E01You Always Hurt the One You LoveJuly 27, 2014 6.4In Los Alamos, New Mexico, during World War II, secrets dominate every facet of family and professional life as scientists Frank Winter and
2. S01E02The Prisoner's DilemmaAugust 3, 2014 6.5Frank's attempt to save his team brings serious consequences; the scientists' wives find creative ways to survive life on The Hill.
3. S01E03The HiveAugust 10, 2014 6.1The community reels after losing one of its members, while new security measures affect the scientists' work.
4. S01E04Last Reasoning of KingsAugust 17, 2014 6.0A high-profile guest shakes things up on The Hill; Frank is haunted by his past; Frank clashes with Charlie to protect his mentor.
5. S01E05A New Approach to Nuclear CosmologyAugust 24, 2014 6.8When Babbit becomes the subject of an investigation, Frank clashes with Charlie to protect his mentor.
6. S01E06Acceptable LimitsAugust 31, 2014 7.0Frank seeks answers about a medical issue; Charlie and Helen take a trip in order to survey an off-site reactor.
7. S01E07The New WorldSeptember 7, 2014 7.6Helen and Charlie deal with a crisis at the reactor; Abby begins a journey of self-discovery; Frank and Liza help Paloma's family.
8. S01E08The Second ComingSeptember 14, 2014 7.5Both Charlie and Frank withstand significant questions regarding the future of each of their projects.
9. S01E09Spooky Action at a DistanceSeptember 21, 2014 7.2Charlie and Frank must work together for the good of the project; Frank turns to an unconventional resource for help.
10. S01E10The UnderstudySeptember 28, 2014 7.2An unexpected visitor arrives on The Hill; Winter explores an unusual solution to the problem with the ignition.
11. S01E11TangierOctober 5, 2014 7.6A development overseas invigorates the hunt for a spy on The Hill; Charlie and Abby make a sacrifice.
12. S01E12Season's bestThe Gun ModelOctober 12, 2014 7.8Akley opens himself up to vulnerability when he tries to fix the shortcomings that Thin Man possesses.
13. S01E13PerestroikaOctober 19, 2014 7.7Frank is given an opportunity that could change his life; Charlie finds himself in the U.S. Army's hot seat.

Season 1 ranked & reviewed

1. S02E01Damnatio MemoriaeOctober 13, 2015 7.3Charlie is forced into a new leadership role in the race to build the world's first atomic bomb.
2. S02E02FatherlandOctober 20, 2015 7.0Frank discovers the real reason he's been taken captive.
3. S02E03The ThresholdOctober 27, 2015 7.3Liza faces off against Darrow as Abby learns a secret about Oppenheimer.
4. S02E04Season's bestOverlordNovember 3, 2015 8.0Oppenheimer puts Charlie in a precarious position.
5. S02E05The World of TomorrowNovember 10, 2015 6.5Frank attempts to navigate his new place on the Hill.
6. S02E0633November 17, 2015 6.7The scientists and Army battle for control of the bomb.
7. S02E07Behold the Lord High ExecutionerNovember 24, 2015 5.5The hunt for a Soviet spy turns deadly.
8. S02E08Human ErrorDecember 1, 2015 7.0As the project falters, Charlie turns to an unlikely partner for help.
9. S02E09BrooklynDecember 8, 2015 7.3Days before the world's first nuclear explosion, everyone races to secure their place in history.
10. S02E10JupiterDecember 15, 2015 7.3A new era is ushered in with the first test of an atomic weapon.

Season 2 ranked & reviewed