Screen Rant

The MCU could finally answer one major Winter Soldier mystery. 1 / 10

If Bucky was so successful as an assassin why didn't Hydra develop more super soldiers? 2 / 10

The serum given to Bucky was experimental and imperfect, but it did its job. 3 / 10

And the idea that Hydra simply stopped their project makes no sense. 4 / 10

But what if Isaiah Bradley is the answer? 5 / 10

In the comics, Bradley destroyed the Nazi super soldier program and killed its creator. 6 / 10

He was court-martialled and locked away, like the MCU version, but he succeeded. 7 / 10

That same story could be used to explain how Bucky was Hydra's only super soldier until the 1990s. 8 / 10

And could explain Bradley's meeting with Bucky in 1951... 9 / 10

...As well as his decades-long incarceration for "being a hero." 10 / 10