From an Oliver and Malcolm showdown to Felicity's father-daughter date with The Calculator, the previous episode has left the fans reeling with all the possibilities in store for season four. The next episode, dubbed "Code of Silence," is shaping up to be just as significant in action and in romance for the characters of "Arrow."

According to a synopsis of episode 14 from Carter Matt, the team will have to deal with the wrath of HIVE. Even with the action, two couples are in peril with secrets and safety threatening to split them apart.

"Oliver (Stephen Amell) and team uncover HIVE's plan to take out Team Arrow once and for all," the synopsis read. "With HIVE's next attack imminent, Lance (Paul Blackthorne) wonders if Donna (guest star Charlotte Ross) is safer without him in her life. Meanwhile, with the wedding fast approaching, Oliver begins to feel guilty that he hasn't told Felicity (Emily Bett Rickards) about his son."

The episode name is a clue on the huge potential of the episode to make and break the relationship -- or at least the upcoming nuptials -- of fan favorite couple Oliver and Felicity. He's been keeping the existence of his son William under wraps, especially from his soon-to-be bride, but it's not something that Oliver will be able to hush up forever.

The secret is especially likely to come to light soon with Malcolm telling Damien Darhk the details about William in retaliation against Oliver in the previous episode. If his son were put in danger by his enemies, Oliver will have to spill on his son to Felicity and the rest of the family.

The synopsis also revealed trouble brewing in the relatively new relationship of Quentin Lance and Donna Smoak. According to a report from Design N Trend, he is contemplating leaving his new love in order to keep her away from danger, although the new nature of their relationship could mean it's not time to keep them apart at the moment.

HIVE will also be moving against Arrow's team by enlisting the help of a group of dangerous villains named the "Demolition Team." With their emergence, the heroes of "Arrow" will have to deal with hidden bombs and a very real threat on Oliver's life as HIVE is determined to end his life soon.

"Arrow" season four episode 14 is slated to air on Wednesday, Feb. 17, at 8 p.m. on the CW.