With Daredevil hitting the mid-way point of its second season, the central element of Semper Fidelis is the start of Frank Castle's trial.
Matt, who was supposed to be deliver the opening statement for the defence, is delayed by business with Elektra. Together the two of them get the stolen ledger decoded, which leads to container in a trainyard... full of soil.
Eventually, their investigations take them to a mysterious building site, but not before Elektra gets involved in Frank Castle's case, screwing up - through her over-enthusiasm - a potentially key witness.
Matt has to finally confess to Foggy that their rich, new, anonymous, client is Elektra and Foggy goes ballistic, understandably, with the fallout driving a wedge between Matt and Karen.
It's easy to forget, amidst all the gunfights and martial arts fisticuffs (and there are a couple of great clashes in Semper Fidelis, particularly the scuffle at the railyard) that Matt runs a law firm with Foggy. So it's nice to see them actually doing their day job in a major court case.
That said, I can't imagine the court case will run for too many episodes as I'm guessing The Punisher will be back on the streets before the end of this season.
And you have to wonder, given the very peculiar revelation at the end of the episode, if perhaps the Yakuza are tangled up in something, maybe, supernatural?